Allows you to relax grip on the throttle making pins and needles and fatigue a distant memory. Simple design emphasizes reliable function over flashy complex styling. Variety of interchangeable rubber inserts allow use with most grip configurations. Universal fit: All O.E.M. grips and aftermarket grips with minimum 1-1/8" to maximum 1-3/4" outside diameter. Fits all Kuryakyn grips. 1-1/8" x 1-3/4" dia.