BONMIXC Mountain Bike Grips, Aluminum Alloy Single-Side Locking Bike Handlebar Grips for MTB BMX Floding Bike EASY TO INSTALL - Fits for bicycles handlebar tube outer diameter approximately 22mm (0.86-inch) DURABLE - The grips are made from high quality TPR rubber, and use high strength 6061 Aluminum Alloy on two-side. SIZE - 140mm length with I.D 21.5mm and O.D 33mm. FOR BIKE TYPE - Fits for any standard straight bicycle or stunt scooter handle bar, MTB Bike BMX Bike etc.