Sturdy and Durable - Each bicycle mirror is made of high quality nylon resin, impact resistant and anti-shatter, weighs only 78 grams; HD Cycling Mirror Lens with anti-scratch protective film, need to tear off the film before use, ABS handle, sturdy and durable, the mirror should be used for a long time. HD Safe Convex Mirror Bike - Mountain bike mirror features a convex lens, providing a wide field of vision and can be adjusted to any viewing angle. Notice to remove the protective film before using the bicycle mirror. 360 Degree Rotation - The bicycle mirror has a full 360 degree rotation and can adjust to any direction to help you look at all directions. Better to adapt to all directions to observe all directions of the back, which ensures a safer ride. Easy to Install - Mounted well in minutes - 1.Mirror aligns angled surfaces to connect the end of the bicycle bar; 2. Fully insert the connection point expansion bolt into the end of the handlebar; 3. Using the hex wrench (in the package), tighten and adjust to the desired position. Suitable For - Fits handlebars with a diameter of 17.4-22mm, the rear view mirror of bicycle is applicable for left and right sides. Ideal for city bikes, motorcycles, e-bikes, bmx, mountain bikes and road bikes. The package includes 2 * bicycle mirror, 1 * hex wrench.