Motorcycle Replacement Mirror 10mm 8mm Plastic Head Shell, Metal Rod White and Convex Glass Total length: 30cm Please check more size detail in the photo. We will gift one M10 to M8 adapter Its modification part and Universal fit for most of Electrombile/Motorcycle/Electric Bicycle/Moped/Scooter...,which installationscrew is 8mm Clockwise OR 10mm Clockwise. Package Including : 1 x Pair (1 Pc Left + 1 Pc Right) Motorcycle Side Mirror with Adapter modname=space&height=30 Regarding the chromatic aberration and dimension error : As the light problem and the measuring method difference,maybe have a little error, please note and understand. Regarding the packing: we may change the package to reduce the weight and keep shipping safety depend on different goods. Thanks a lot. 1