Model Name:Motorcycle Rearview Mirrors Item Height:1inch Item Length:1inch Material Type:CNC Aluminum Item Type:Side Mirrors & Accessories Item Weight:0.8kg Item Width:1inch Screw Size:10mm 8mm Specification: Condition: 100% Material: CNC Aluminum Bolt Size: 8MM & 10MM Color: Black Package Includes: 1 pair of Universal Motorcycle Mirrors (Left & Right) 2 x 8mm & 10mm Standard Bolts, 1 x 8mm & 10mm Reverse Bolt Install Instructions Included (in the Amazon product picture) Features: 360 Degree Swivel allows to be placed at ideal angle for your riding position Freely adjust it up & down or left & right for the best viewing angle. Direct bolt on to the stock mounting point, direct replacement, easy install. Can see backward driving condition clearly while riding, avoid traffic accident. High quality rear view mirrors can be stable and durable, fade and corrosion resistant, hard anodized finish for extra strength Fitment: Universal 8MM 10MM Bolt Suitable for Dirt Bike Quad Street Bike Adventure Snowmobile Jet ski Scooter Coolster Moped GY6 ATV. If the 8mm or 10mm standard bolt (Clockwise) can't fit your thread, please change to another 8mm or 10mm reverse bolt (Counterclockwise) install