High density sponge design makes it shockproof and sweat absorbing. Lock ring design makes it stable and prevents falling off. Lightweight design makes it comfortable to touch and reduces pressure on the bike. Plug design prevents water or dust from entering. It is made of high-quality sponge , hard plastic , aluminum alloy material. The length of the product is 13cm, the diameter is 3.3cm. It is suitable for mountain bikes. Item Name: Bike Handlebar Grips Material: Sponge, Hard Plastic, Aluminum Alloy Features: Double Locking, Anti-slip, Shock-Absorbing Size Details: Length: 13cm/5.12" (Approx.) Diameter: 3.3cm/1.3" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Pair of Bike Handlebar Grips