Warm Tips Goods are shipped from China and take approximately 10-15 working days to reach their destination. Advantage:It is made of high-quality rubber material, which is comfortable in hand and superior in performance.Ultra-light aluminum alloy locking ring, locking on both sides of the handlebar.Correct hand position so that the median nerve does not absorb unnecessary pressure (a major cause of carpal tunnel syndrome).Prevent numbness of hands and fingers.Non-slip surfaces are safer.Lock design for safer riding Package Contents:2 black bicycle handlebar grips.2 locking rings.1 hex bolt. Product Type: Adjustable Rubber Handlebar Grips.Colour: BlackLength: 5.20" (13.2cm).Weight: 5.64 oz (160 g).Install a bicycle straight handle with a diameter of 0.78-0.98" (20mm-25mm).