CNC process and anodizing make it very resistant to corrosion and rust. Exquisite and professional workmanship makes it have strong bearing capacity and high compressive performance. The hollow out handle makes it very comfortable and lightweight to hold. And the wide range of applications makes it suitable for different types of bikes. It is constructed of aluminum alloy material, which is durable to use. The front open of this product is 10cm and the rear open is 13.5cm. It is suitable for bicycle, cycling, repair, mountain bike, road bike and so on. Item Name: Hub Quick Release Lever Material: Aluminum Alloy Features: Strong Bearing Capacity, Colorful, Corrosion-resistant Size Details: Front Open: 10cm/3.94" (Approx.) Rear Open: 13.5cm/5.31" (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 x Front Quick Release Lever 1 x Rear Quick Release Lever