carbon fiber construction provides light weight and strong support for long rides. Key features Carbon fiber set for strength and light weight Sponge cushion is removable and washable for easy cleaning and hygiene Center clamp diameter fits 31.8 mm handlebars; brake handle diameter 19.2 mm Ergonomic comfort and adjustability Ergonomic design helps relax the arms during longdistance cycling on good road conditions Elbow support and sponge cushion secured with Velcro; easy to adjust to your preferred position Installation and compatibility Easy to install; complete set included; ready to use out of the box Wide compatibility: suitable for Road Bikes, MTB, Triathlon, longdistance travel bikes, and similar setups Use scenarios Longdistance road cycling: rest and relax arms during extended rides, reducing fatigue on straightaways and climbs Triathlon training or events: stable elbow support between segments to maintain comfortable positioning Touring or mixedterrain rides: quick adjustment for different riders and riding conditions with a complete, readytouse kit