UNIVERSAL HANDLEBAR - Inner diameter=0.87", Suitable for Bike Handlebars with Outer Diameter between 20-22 mm, Universal for Most Bicycles. Product Length: 135 mm ERGONOMIC DESIGN - soft and comfortable grips can provide the comfort of the palm and prevent numbness and pain in the fingers when driving for a long period of time. It also will not stress the arms and the shoulders, and can reduce hand, wrist and elbow fatigue. ANTI-SLIP & BUFFERING DESIGN - Covered by many little convex anti-skid rubber particles, the handle grip is not easy to slip whether sweating or in the rain, which greatly improves the cycling safety. Widen holding surface supports your palm perfectly to make you feel less pain of long-time riding. DOUBLE SIDES LOCKING DESIGN - Double side aluminum alloy lock-on can make the grips tighten, no worry loose or fall down. Provides the cyclist with the utmost security. INSTALLATION & PACKAGE - Just insert the screw and tighten it by Allen key. Spray some soapy water or cleaning water on your bike to make installation easier and faster. Package Includes: 2 x bike handlebar grips, 2 x end caps (Hex Wrench not included).