Fits for 7/8 inch (about 22mm) handlebar end with standard bar end insert. Unique Custom Design, perfect match to most motorcycle. 360 Degree Swivel, allows to be placed at ideal angle for your riding position. High quality clear glass give a clear vision on both day and night. Easy to insert, direct bolt on to the stock mounting point. Part number: RMH-U04 Compatible with vehicle type: Street-Motor-Scooters Fit type: Universal Fit Product Description Feature: -Condition: New High Quality Side Mirrors –Quantity: 1 Set –Stem Length: 2 9/16inch(6.5cm) –Mounting Clamp Diameter: 7/8inch/22mm –Mounting Screw Diameter: 0.31inch/8mm –Adapter Diameter: 13mm and 17mm/ 0.51inch and 0.66inch Installation Position: Suitable for handlebars of motorcycles, electric bikes and bicycles. These mirrors usually have been installed on handlebar, they will not fit for install on windscreen or other position.