●Inner Diameter: Approx. 0.9 inches (22 mm) (bicycle standard); Material: Fiber leather (waterproof, soft); Weight: Approx. 7.1 oz (202 g) per set ●Length: 5.2 inches (131 mm) (choose the one that matches your current grip length) ●Handmade sewing gives a soft grip and a lighter vibration to the arm than rubber products ●Bolts and aluminum clamps secure the core of the grip to the handlebar and prevent slipping ●Requires 0.1 inch (3 mm) allen key for installation. # Instruction manual is not included. No hardware is included