Features: Quality aluminum matter, rustproof, in use. for motorcycle with 22mm diameter handlebars. A safe and way to fit a narrower to a wider stem. Used to transform diameter 22mm 7/8 inch to 28mm 1-1/8 inch. Simply place one shim each side of clamp area on handlebar and insert into stem, tighten as normal. Specifications: Aluminum Alloy Size: Approx. 22mm, 28mm Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: Shim Spacer