niceeshop(TM) Bike Bicycle Anti Slip Sponge Handlebar Grip Hole Diameter (Approx):2cm / 0.7 inch; Size (Approx):10.8x3.5x0.7cm /4.2x1.4x0.28inches Aggressive design works great even in nasty conditionsDurable foam is superlight and comfortable Dual compound Bike Foam Grips won't slip on the bar or in your hand Bicycle Foam Grips help absorb vibration and give the rider a more comfortable feel and ride