Handlebar Grips/Tape

The Charger Evo is the most complex grip we’ve ever created. Dual patterned textures on each grip allow riders to absorb shock and feel handlebar support with every move. Lock-on ring design ensures the grip will stay in place for long lasting use. Lock-On Grips include the grips, clamps, screws, and plugs. - Length: 136mm - Weight (with plugs): 90 grams - Diameter: Medium (31mm)

- Medium Diameter (32.25mm) - Length 135mm - 118g - Handlebar Diameter: 22.2mm

The 711 features perfect grip ergonomics for long-distance routes and use in racing XC style mtb. A well thought-out, highly ergonomic shape offers an especially secure grip and maximum comfort, while a full locking inner sleeve allows for infinite adjustment, allowing the rider to get that "just right" feel. The scope of delivery includes one set of grips. Strategic clamp placement increases the shock absorption and comfort on the outside of the hand. In addition, the outside surface area was increased using every trick in the book, making the new 711 Tech and Trail 2.0 as comfortable as a wing grip despite not being one. As round as necessary and as flat as possible: with the 711 grip, the outer contact surface is pressed flat, thus reducing the pressure peaks many times over. The grip security is supported by the Ergobar. This results in a flat, slightly angular grip bottom and offers a perfect form fit. This allows the grip to be guided loosely while still always keeping the bike under control. The advantages of the grip are particularly noticeable at the end of a tough marathon, but they also increase the fun on long tours or quick trips after work. Increased performance through perfect ergonomics. Various rubber compounds ensure a perfect grip level and high comfort. We only use the best possible materials. This guarantees you a long service life and no sticking of the grip rubber. The personal grip size is what matters. With the 711 grip, the sizes differ in diameter and shape.

Adhesive gel backing, anti-shock foam, and the soft feel of microfiber cloth will keep your hands happy on even the longest rides. Easton's Microfiber Bar Tape is cushy without deadening road feel and doesn't get slippery when wet.

ESI Grips NEW RCT Wrap is perfect for Road, Cyclocross, or Triathlon riders, especially riders looking for extra shock absorption and comfort compared to a normal bar tape. ESI RCT Wrap is constructed for a smooth overlay and customizable thickness. If you are looking for a thick grip, wrap it looser. If you are looking for a thinner grip, wrap it tighter. It's that easy! - 134-176 grams (Depends on how you stretch) - 3.5mm Thick - 1" Wide - 2 Rolls at 6'2" each - Custom Fit - Stretchable - Custom Density - Shock Absorbing - Comfortable - Super Tacky - No Adhesives - Long-lasting - Easy to Install Package Includes: - 2 long silicone wraps (for wrapping bar) - 2 short silicone wraps (for under hood) - 2 Silicone Tapes (adhere to themselves – 1-time use) - 1 pair of NEW custom larger Bar Plugs

- 32.3Mm thick durasoft polymer (Dsp) - Micro-Chevron grip pattern for superior comfort, Feel and control - Ultra lightweight at 30 grams per set - Includes plugs and double sided tape

Oury single compound grips. Simple & classic. - Soft grips with raised blocks

Dan Paley signature grips: Dan Paley is really fussy when it comes to grips, not too fat, not too thin, not too squishy, the list goes on. The Dan Paley Slims however are just right. - Flangeless Dan Paley zigzag design - Krayton rubber - Bar ends included

Broc Raiford signature grips feature a comfortable ribbed design and smooth ends for improved wear resistance. - 160mm lenght - Par Ends Included

Cornerstone Grip features a ribbed design with Cornerstone logo. - Includes Odyssey Par Ends

The Charger Evo is the most complex grip we’ve ever created. Dual-patterned textures on each grip allow riders to absorb shock and feel handlebar support with every move. The single-compound grip makes application and removal easy in a grip that athletes can count on. Single Compound Grips include push in plugs. - Length: 140mm - Weight (with plugs): 108 grams - Diameter: Medium (31mm)

- A totally new grip designed from the ground up to give you more control and comfort then ever before! - Single lock ring design and smooth thumb zone. - Reinforced bar end area - Anatomical bar end design supports and protects the little finger - Cut outs improve impulse shock, vibration absorption and comfort - Interlocking columns support low profile fins to create a tread pattern which offers the benefits of both a finned grip and a low profile - Features: Single lock grip, low profile 30mm diameter, tapered bar ends, Spank 'Human Factor' grip pattern. - Material: Rubber, alloy clamp, plastic base, steel bolt - Length (mm): 145 - Diameter (mm): 30 - Weight (g): ±115g / Pair

- Newbaum's Cotton Cloth bar tape is produced from highly durable milled cotton cloth - Vibrant colors are produced from eco-friendly dyes for a lower impact on the environment - Sold in individual rolls. Made in the USA

Keep adhesives off your bike! This is the finishing tape included in our RCT Wrap Kits. If you remove the protective backing and feel the material it feels exactly the same on both sides. There are no adhesives! If you touch it to itself you have just a few seconds to peel it away before it starts to bond. It bonds to itself or to our silicone grips, but not to your bike or to your components. No more cleanups. No more nasty glue stuck all over your bike or products. BENEFITS: ESI Silicone Tape has some of the same benefits as our grips. It is heat resistant, made in the USA, and long-lasting. Not to mention it's military-grade! - Easy to Install - Hassle Free - Self-Bonding - No Residue - No Adhesives - UV Resistant NO CLEAN UP: The best part of our tape is when you are done with it, cut it off, and throw it away. No Clean up needed! USES: There are countless uses for our silicone tape. One awesome use is it makes a great chainstay protector. Also, wrap it under mounts to keep your lights, cameras, GPS, etc. from rotating and scratching your bars. Basically, anything you use adhesive/electrical tape on you can now use ESI Silicone Tape instead without the mess. With 10ft in a roll, you can get numerous chain stay protectors and custom tape jobs. Some other great uses include: - Tool Handles - Finishing Tape - Protecting Wear Points - And Much More The possibilities are endless!

Realize the epitome of grip and control with our thinnest bar tape. Minimal padding allows for maximum feel and handling while carving the corners of your local criterium.

The Knuckleduster features a tapered internal sleeve that you have to tap onto your handlebar for full engagement. This tapered sleeve feels like it is already locked into place once fully tapped onto the bar and coupled with a single bolt lock-on clamp, you will not develop any play. The body of the grip combines the best elements of a half-waffle, mushroom ribbing, and an ergo feel. Featuring a mushroom pattern to minimize vibration. The Knuckleduster grips are an all day grip that allow you to keep it Pinned Wide Open at all times.

Bring the stylish comfort of a well-worn baseball glove to your ride with Portland Design Works' ergonomic Whiskey Grips. They're made from classically stitched, vegetable-tanned leather with polished aluminum lockrings for durability and a finish that'll only improve with age.

A professional bar tape made by Solocush. Vento are race bred tapes for ultimate control and reduced weight. Solocush is our most streamlined cushioned construction, a single-layer chunky platform to rest on during longer rides without compromises on weight. Tacky finish aids a sticky nonslip surface with a raised texture for ultimate grip in every condition. - Solocush construction 2.7mm thick - Tacky touch - Vento: Performance racing series designed in collaboration with professional cyclists - Intended use: road racing

Serfas' Reactive Bar Gel installs underneath your bar tape and eliminates painful, fatigue inducing road vibration so you'll ride longer, fresher, and with more comfort, period. Four pads cover your drops and bar tops and can be cut for a perfect fit. • Gel Pad Inserts Alleviate Road Vibration • Four Pads Cover Bar Tops and Drops • Cutable Pads Ensure Custom Fit • Color: Clear

MSW anti-slip bar tape provides positive contact with your handlebars and exceptional comfort during your most demanding rides. The flexible PU material makes this tape easy to install while the gel backing provides added comfort and clean hassle-free removal. - PU material with anti-slip coating improves grip over traditional cork material - Gel backing provides vibration damping and extra comfort - Silicone adhesive for easy install and clean removal - 78 inches (200cm) per roll - Finishing strips and bar end plugs included

What comes between you and the mountain bike you love? The Love Handle, a very thin profile, double lock-on grip featuring Race Face's durable yet super tacky silicone compound that delivers long wear and all weather stickiness. The Love Handle is not only about its silicone good looks though, the palm area is contoured with channels to allow air to circulate and moisture to dissipate while the diamond pattern in the finger grip zone provides tons of control. Get a good grip; you won't want to lose these love handles! - Double lock on grip - Super slim low profile design with directional shape - Race Face's durable yet super tacky silicone compound won't wear out as quickly as typical grips and have a superior sticky feel even when wet - Directional design features contoured palm area with moisture dissipating channels and diamond patterned underside to enhance finger control and mitigate unwanted slips - Lightweight construction

Features and Benefits - 250cm in Length—accommodates bars up to 50cm - Grip compound maintains traction when wet - Durable stretch for installation - Vibration-damping backer strip - Hard-wearing construction - 3mm thick What It Is ENVE-designed bar tape that provides maximum ride feel without compromising comfort and ensures grip in wet conditions. 250cm in length, 3mm thick, and silicone-backed compound that provides the right amount of stretch for ease of installation and durability. Science & Insight For ENVE, handlebar tape is more than a fashion accessory; it is a key component that sets the tone for your ride. Bar tape that becomes slippery when wet and causes discomfort diminishes confidence and the ride experience. As such, ENVE Handlebar Tape is designed with a grip compound that ensures bare-handed traction despite wet conditions. To maximize ride feel without compromising comfort, ENVE Handlebar Tape is 3 millimeters thick with a vibration-damping silicone backer strip that ensures comfort for long miles over rough roads.

- Dual Density Design - Integrated, 1pc Lock-On - Tapered Inner Core – prevents slippage - Mushrooms for ultimate comfort - Ergonomically ramped and undercut grabbers for superior grip - Ovalized design for ultimate comfort and control - Circular Iconic dampers - Flared outer ends

- Dual Density Design - Integrated, 1pc Lock-On - Tapered Inner Core – prevents slippage - Mushrooms for ultimate comfort - Ergonomically ramped and undercut grabbers for superior grip - Ovalized design for ultimate comfort and control - Circular Iconic dampers - Flared outer ends

The "O" grips feature a lightweight, multi-directional rib design. - Made in the USA by ODI - Larger ribs run throughout the grip pattern for more control when you need it - Includes ODI Push-In style end plugs

The GS3 combines comfort in a lightweight package, ideal for long distance endurance athletes. The three-finger bar end is made out of fiberglass reinforced composite, which offers more hand positions for increased comfort and leverage on long mountain bike rides. Additional rubber is used on the bar end, improving the rider's grip during hand position changes. The exclusive German-produced rubber compound found in the grip and on the bar end enables precise steering and control, all the while still maximizing optimized damping features. The grip provides ideal comfort over long distances through ultimate pressure distribution and ride-tuned flex. - Carbon bar compatible - Bar end: fiberglass composite with rubber inserts

Jagwire Pro Bar Tape matches style with superb comfort and control. Developed to complement our cable kits, this tape cushions handlebar vibrations and provides exceptional grip when riding with or without gloves. The included locking bar end plugs secure the tape with a clean finish. Offered in distinct varieties to match the corresponding housing colors, Pro Bar Tape adds style and is easy to clean. - Features a tacky finish for superior grip in all conditions - 3.0mm thick and uses a 3-layer construction with a breathable polyurethane (PU) surface for extra comfort - Lightweight foam inner layer saves 40% weight compared to similar 3.0mm thick bar tapes - Includes lever strips, screw-type locking bar end plugs, and finishing tape - 2160mm length is enough to wrap most drop handlebars

The Descendant grip is for the performance-driven hard charger who needs maximum grip and confidence in their cockpit. Featuring a full-width contact area that extends from the inner clamp right to the end of the bar. The ridged pattern allows for a soft-to-touch feel and makes for superior grip and control. Available in solid colors, marble and gum options, these grips give you the option to match grip performance with your personal style. - Single-ring clamp for max width and comfort - Available in Black, Gray, Gum Rubber, Red, Gray/Black Marble and Red/Black Marble - Soft and durable ridged rubber grip pattern - Length: 133mm - Clamp: Single

- Developed in collaboration with 2x World Cup Champion Aaron Gwin - Ergonomic single clamp design with aluminum reinforced ends - Angled rib pattern matches the articulation points of your hand - Bonus pack includes Lock-On grips and v2.1 clamp

WeThePeople's classic mushroom-styled Hilt grip now measures 160mm long to fit today's wider bars. Made with Vex compound rubber for a better feel. - Flangeless - Size: 160mm Length, 29.5mm Diameter

The Team grip was designed by our team riders who wanted a wider, more comfortable grip for big bars and brakeless riders. Vortex PC Bar Plugz are included. - Designed by Stolen Team riders - Includes color-matched Vortex PC Bar Plugz - Length: 165mm - Diameter: 31mm - Weight: 4.3-ounces per pair

Experience what so many cyclists are using, the Logo grip. It satisfies many riders providing durability. This is a great grip for those with medium-sized hands. Lock-on grips include the grips, clamps, screws and plugs. - Length: 130 mm - Weight (with plugs): 120 grams - Diameter: 31.5 mm

The Elite Flow grips feature an offset design that provides more padding in certain areas to eliminate the need for a thicker grip. - Single clamp design - Half-waffle pattern on the front of the grip provides extra control when you are off the back of the bike - Length: 130mm

The BioKork version with a full size, multi-position bar end for maximum hand positions, increased leverage, and stability when climbing or during out-of-the-saddle cycling. Perfect for commuting, touring, or for those who like a longer bar end. The bar end angle can be adjusted independently from the angle of the grip for the perfect personal fit and the bar end doubles as a clamp to lock the grip in place and prevent movement while riding. Like all the grips in the GP-Series, the GP5 BioKork eliminates numb hands, aching fingers, and tired forearms. The grip body is made up of 40% cork, which is sustainably grown in Portugal and able to meet strict ecological guidelines. The central core uses 20% less plastic and is reinforced with natural fibers. All components of the grip are produced with regards to sustainability. - Cannot be used on carbon handlebars - Bar end material: fiberglass composite with rubber inserts - Uses: touring, commuting

The 710 Tour and Travel Grip features a well thought-out shape, with the wings pulled down far, making the perfect combination of comfort and driving dynamics. The 710 user is a comfort-oriented mountain biker or a sporty trekking biker. This relief wing, which is located at the very edge and deeply extends downwards, frees up space for securely grasping the grip body in all situations. The raised end of the grip externally nestles against the side of the hand, while the inside is somewhat more elevated. As a result, it specifically relieves the ulnar nerve, the median nerve, and the carpal tunnel. The clamp is located on the inner side of the grip. This increases the shock absorption and comfort on the hand’s outer side. It is not compatible with twist grips. Various rubber compounds ensure a perfect grip level and high comfort. We only use the best possible materials to avoid sticky/gummy rubber. This grip is a bit more difficult to install because the clamping is inside and only on the inner third. Use a bit of brake cleaner to slip the grip onto the handlebar very easily and it tightens up very quickly. - Weight (g) / pair: 238 - Diameter at Smallest Point (mm): 91, 101, 106 - Material: Proprietary Rubber Blend

- Aluminum clamps secure the grip on both ends using a hex wrench - Loosen pinch bolts and grips slide on or off with ease - 130mm length for standard shift/brake setup (not for twist shifters, use 90mm replacement grip options for twist shifters)

The Cult Vans grips feature a classic Vans waffle pattern and are made by ODI in the USA using their proprietary rubber compound. - Made in the USA by ODI - Length: 150mm

Our softest and thickest grips for every type of cyclist! These Plush Silicone Grips add comfort to any handlebar. The soft Silicone absorbs vibration and keeps your hands comfortable on long or short rides. Since they are made from 100% Silicone they will not fade, crumble or spin. They are non porous and stay tacky when wet. Soft grooves add extra grip and will keep your hands comfortably in place. These long lasting and comfortable grips are an affordable upgrade that will bring comfort to all of your rides! - Fits most handlebars - Made from 100% Silicone - Latex & Rubber Free - Made in the USA - 35mm thickness - Made for 22mm bars (can fit applications down to 19mm) - Bar Plugs included - *Install Bar Plugs first for the protection of grips and ease of installation - From the makers of ESI Grips

- 31mm grip with micro diamond pattern - Kevlar infused TRC + rubber compound

- 30.3Mm thick durasoft polymer (Dsp) - Micro-Chevron grip pattern for superior comfort, Feel and control - Ultra lightweight at 27 grams per set - Includes plugs and double sided tape

Oury single compound grips. Simple & classic. - Soft grips with raised blocks

- The thinnest DEITY grip to date - Featuring soft DEITY TRC+ rubber compound for durability and increased grip - Tapered inner sleeve to ensure perfect contact with the handlebar - Single clamp design with forward facing bolts that feature loc-tite - Lasered black ano 6061 T6 aluminum clamps - Seamless transition through the end of the grip for comfort and full range of control - Diamond pattern wraps around the end of the grip - 133.75mm length with a 30.5mm outer diameter - Not compatible with bar ends or plugs - Intended use: All MTN / Enduro / DJ / Slopestyle and DH - 96 grams for the set INSTALLATION TIP: To fully and properly install your SLIMFIT grip due to the tapered inner sleeve...make certain to whack the end of the grip 3 times with the palm of your hand until the grip fully seats onto the handlebar. If you find the fit is a bit tight due to your particular handlebar, a small amount of Isopropyl Alcohol can work wonders for lubrication. Finish the install by tightening the hardware to the specs listed on the packaging.

- 1-piece, integrated Lock-On grip. - Exclusively fits 19mm bar ends. - Dual Density Design. - Smaller 25-26mm outer diameter. - Smaller 115mm length. - Tapered and slotted core to eliminate slippage. - Plush SDG Icon pattern for superior grip control and vibration dampening.

Designed for the XC racers. 5mm of 100% silicone compound provides excellent vibration dampening and superior comfort. - 100% Silicone weather resistant material - Plastic bar end plugs - 5mm thick

Wolf Tooth Supple handlebar tape is extra thick, extra wide, extra soft, and extra tacky. Designed for the abuse of unforgiving trails. The 40mm wide tape can be tuned for additional thickness by wrapping with increased overlap. - Washable surface is resistant to wear and packing out - 5mm thick, 100% silicone is washable, resistant to wear and packing out - Self-fusing silicone finishing tape included for a clean finishing touch - Length: 152cm

Wolf Tooth Supple handlebar tape is extra-thick, extra-wide, extra-soft, and extra-tacky. Designed for the abuse of unforgiving trails, the 40mm wide tape can be tuned for additional thickness by wrapping with increased overlap. - 5mm thick, 100% silicone is washable, resistant to wear and packing out - Self-fusing silicone finishing tape included for a clean finishing touch

Slightly thicker than the Razer Grips, slightly thinner than the Fat Paw Grips, these 6.5mm thick grips are great for longer rides, as they reduce hand fatigue and finger numbness. - 100% proprietary dual-density silicone compound provides excellent vibration damping and conforms to your hand for improved comfort while maintaining durability - Tacky texture provides excellent grip with or without gloves in all weather conditions - 6.5mm thick

- Ergonomic design conforms to riders hand without feeling bulky, provides padding where it is needed most - Half-Waffle pattern on the front of the grip provides extra control when you are off the back of the bike - NEW SINGLE CLAMP—Version 2.1 Lock-On System for more usable grips space and improved comfort on the outside of the grip - Variable knurl pattern alternates from smooth to sharp texture to provide more traction without irritating your hands. - Reinforced End molded out of soft, but durable material to prevent grip blowout.

Get a grip. A straight profile, lock-on grip that combines a ribbed, mushroom pattern on the palm side for comfort, and hex-pattern on the underside for grip. Where it thrives: Challenging trails, out in the elements What it's built for: Control, grip Highlights: - Mushroom ribs for comfort and control - Micro-Hex pattern for all-weather grip - Single lock-on clamp for security

Get a grip. Silicone construction and a round-to-hexagonal tapered profile produce a lightweight and natural-feeling contact point for comfort and control. Where it thrives: In competition, challenging trails What it's built for: Control, comfort Highlights: - Unique 36mm outer hex shape for control - Rounded 33mm inner profile improves grip - Silicone construction for comfort

More comfort, more control. Lightweight EVA foam and cork combine with a contemporary knurled texture twist – offering a stylish, comfortable, and durable finish to your bike. Where it thrives: The open road, gravel roads What it's built for: Grip, durability Highlights: - Comfortable, lightweight EVA foam absorbs road-buzz and feels great - Natural cork elements and debossed knurled pattern for better grip in all conditions / Includes: 2x tape rolls, lever strips, bar end-plugs, and finishing strips - Thickness: 2.7mm, length: 200cm, weight: 82g

Super Sticky Kush is the bar tape of choice for 3x World Champion Peter Sagan. Fusing performance and style, Supacaz delivers the only bar tape worth dreaming about. We boldly claim that Super Sticky Kush is the best bar tape ever. Galaxy series adds just enough color to mix or match with any bike. - Super Sticky PU (top layer): Superior supple hand feel with long-lasting performance. Extremely advanced polyurethane that remains tacky in wet conditions. Highly resistant to UV rays, climate, and sweat. - Kush Foam (middle layer): Exclusive compound that maximizes dampening via a nano amount of foam. Shock absorbing qualities that drastically improve bike handling in the corners, downhill, and in rough conditions. - Emboss: The tape is completed with the embossment of the beloved Supacaz pattern. The embossment creates the unique Supacaz look and wicks away moisture which maxamizes grip. - Tackiest/Best Hand Feel - Long-lasting PU tape - TruNeon: Super Bright, Exclusive Colors 1 Set includes: - Two Super Sticky Kush tape rolls - Two aluminum laser-etched Star Plugz (powder coated or anodized) - Two high-end rubberized finish tapes

Oury single sided V2 lock-on grips.

More support with more comfort Why not combine the best? With the GA3, the winged grip has proven its genius to the All-Mountain world. The special thing about the GP1's off-road cousin is, he locks on tight with a lightweight inner clamp. The concept combines all the relief benefits of the wing and actively supports your wrist. Your freedom of movement and the accompanying bike control remains fully intact. Riding pleasure guaranteed! What exactly are the benefits of the wings on the grips? The longer a ride is, the harder it is for a rider to maintain the ergonomically correct hand position on the bike. As a result, riders often bend their wrists too much, stressing nerves and tendons and inhibiting blood circulation. Numbness and pain in your hands are often the undesirable consequences. The GA3 grip optimizes the hand position through the Miniwings and prevents over-bending in your wrist. What is the carpal tunnel? The carpal tunnel is an anatomic passage in your wrist for nerves and tendons running from the lower arm to the hand. If the wrist is bent too much the nerves become constricted, which often leads to pain and numbness. The GA3 with Miniwing is based on the well-established and proven design of the MTB-specific GA2 grips. The particular shape of the grips provides you with great comfort and grip, without compromising the freedom of movement. This allows you to have all the control you need to tackle the most demanding of trails with full confidence. As an ergonomically perfected expansion of the GA-series by Ergon, the primary purpose GA3 grips is to provide relief out in the trail. But, they're not only perfect for the MTB category, they are also ideal on fitness-oriented and urban bikes. The ergonomic winged-grip GA3 is available in five striking colors. Ergon grips don't just feel great, they look great, too!

The classic Oury feel updated with lock-on from ODI. Bonus pack includes snap-caps and Lock Jaws. - Made by ODI - Snap-caps and Lock Jaws included

Traditional EVA tape looks great on the bike and feels comfortable on the hands no matter how long the ride. EVA tape is flexible and comes with an adhesive backing so it wraps well and stays put during and after installation. - EVA vibration-damping foam increases grip and comfort - Adhesive backing for perfect bar placement - 78 inches (200cm) per roll - Finishing strips and bar end plugs included

The classic flangeless Longneck ribbed grip pattern with an open end to accommodate end plugs now gets an extra 25mm of length! PRODUCT FEATURES: - Classic mushroom style collapsible rib pattern - Constructed of our proprietary grip SOFT compound for added comfort! - Increasingly popular with top athletes around the world - Open ends with Push In Plugs end plugs included - Sold In Pairs - 160mm

The Goats Grip just went Super Soft. Prototyped through the 2020 season and based on the World Cup Winning pattern of the Bartender Pro as used by Greg, as well as Nina Hoffman, Danny Hart and Angel Suarez. - Super Soft Compound - 31.5mm Diameter - Single Lock-on - Tapered Core

- Perforated leather handlebar tape - Genuine perforated leather - Kit includes: 2 strips of light, perforated leather bar tape, 2 rubber bar end plugs and 2 adhesive cloth strips - Self Adhesive: Yes - Tape Length: 215mm

The Performance bar tape features a lightweight design backed with shock reducing foam that absorbs vibration while maintaining a thin profile. - Ultra-lightweight (50g/set) bar tape is designed to provide the optimal combination of comfort and control - Soft and tacky elastomeric surface layer - 30mm x 2,100mm - Package includes end plugs and finishing tape - 2.5mm thickness