2-ply grip to reduce vibration, arm pump and hand fatigue Made from an outer ply of PVC, designed to stabilize grip surface, surrounding a second layer of Kraton gel to absorb vibrations Features skull design in the PVC High flange for maximum control while riding Closed end design for all off-road applications For use with 7/8" bars and twist throttles 4.92" L. GRIP SKULLY BLACK OPEN