Robust and Durable: Each bicycle mirror is made of high quality acrylic acid, impact resistant and shatter proof, weighs only 89 grams ABS handle, sturdy and durable, the mirror should be used for a long time. Safe Bike Convex Mirror: Convex acrylic glass, impact resistant, will not crack. Life span. Even if you are driving in the mountains, the mirror will not shake, chip or break. Please remove the surface protective film when using. 360 Degree Rotation: The bike mirror has a full 360 degree rotation and can adjust any direction to help you look in all directions. Better to adapt in all directions to observe all directions of the back, which ensures a safer ride. Easy Install: The mirror aligns the sloped surfaces to connect the end of the bike bar 2. Fully insert the connection point expansion bolt into the end of the handlebar 3. Using the hexagonal wrench (in the package), tighten and adjust the desired position. Wide application: This mirror is universal and suitable for both left and right side. It is suitable for flat handlebars with an internal diameter of 17.4 mm 22 mm. Ideal for a variety of bikes such as racing bikes, mountain bikes, BMX, city bikes, motorcycles, electric bikes, etc.