BRed Double Lock On Locking Handle Cycle Bicycle MTB Mountain Bike BMX Grips ReviewbP PP Red Double Lock On Locking Handle Cycle Bicycle MTB Mountain Bike BMX Grips PAnti-skid design, two screws fixed, easy to installPMaterial: Anti-slip TPR rubber + AlloyPOuter diameter: 1.34 inch (34 mm); Inner diameter: 0.87 inch (22 mm)PLength: 5.