Description: 100% Brand New Thread Diameter: 10mm Fits 22mm (7/8") Handle Bar Motorcycle. It can help you to fixed your motorcycle handlebar mirror. Made of Aluminum, corrosion resistance and durable. Package Includes: 1 Pair Motorcycle Handlebar Mirror Clamp Holders Note: 1. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)