Description: Undoubtedly, our product is light in weight, which it is easy to carry and install. And it also has good fastening effect because it has uniform force. Surely, our product has high stability because it has good anti-slip performance, and it also can resist loosen. Featuring good wear resistance and durability because it is made of high quality metal. It is made from aluminum alloy, is durable to use. The length of the product is 1.9 cm, the width is 1.9 cm and the thickness is 1.6 cm. Our standard tooth pitch is suitable for standard M5 screw, suitable for most of the bicycle quick release axle on the market (except for the barrel axle quick release lever) Item Name: Bicycle Hub Nut Material: Aluminum Alloy Features: High Hardness, Corrosive Resistant, Ultra-light Size Details: 1.9cm x 1.9cm x 1.6cm/0.75" x 0.75" x 0.63" (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: 2 x Bicycle Hub Nut