Quality assurance: High quality aftermarket accessories, perfect replacement for damaged original mirrors,Any quality problems will be replaced free of charge. Feature: Easy to install and it is very sturdy and durable, the mirror is highly reflective and the mounts are secure once you lock them in High Quality: High-impact ABS shell with aluminum shaft. Very sturdy and durable. doesn’t shake or vibrate even at high speeds of 120+ Km/h (75mph) Fit for: With 10mm clockwise threaded bolts and 7/8″ handlebar mount clamps, suitable for most brands of motorbike, Street Bike, ATV, Dirt Bike, BMX Bicycle and Scooter. Easy to install: As shown in the picture, the installation screw is attached. The installation is very simple. Product Description Fitment: Universal Fits inside handlebars with 13 to 18mm inside diameters. (for reference only) ALL 7/8″ handlebar.