Slim profile and durable synthetic rubber construction give optimum anti-slip control even on demanding terrain or in wet conditions. Tacky diamond cut patterned texture provide superior vibration dampening and increase comfort by reducing hand fatique on long rides. Installation is easy with a single lock-on alloy clamping collar that keeps grips in place while you ride - hex wrench for installation is included. Designed to fit any standard straight bicycle handlebar with an outer diameter between 20-22mm. They feel great with both gloves and bare hands