Reflex grips have been engineered to reduce impacts and vibration being passed on to the ridersa hands to allow you to ride more with less pain and fatigue. . V2.1 lock-on single clamp system provides more usable grip space. Reinforced durable ends. Soft flexible ribs at thumb provide impact damping. Padded top grip section for excellent shock absorption. Angled waffle pattern with oversized top rib that matches finger articulation points for improved control and more ergonomic feel. Large/Extra-Large Profile / Medium compound diameter 34.5mm. Made in the USA