[Premium Quality]Explosion-proof and scratch-resistant bike mirrors, and mirror body are made of - impact resistant nylon, high strength aluminum alloy. [Rearview Mirror]The mirror glass can provides 50~60% anti-glare function in the environment, and HD mirrors give you a clearer view behind you when riding. [Wide Angle Bicycle Mirrors]The lens size is 13 x 6cm (5.12 x 2.36 inch), providing wider and undistorted view, and 360° rotatable bike mirror can help you watch direction of you back. [Handlebar Size]Suitable for Bicycle handlebars' diameter which is 22.2 mm(0.87 inch), easy to install. Please check the size of your bike handlebar to install smoothly. [Universal Design]Can be installed on both left & right, and top of the handlebar,suitable for different kind of bicycle, like mountain road bike e-bike, bicycle, motorcycle & electric scooter. Convenient installation and stay in place easily. color:Black Material:Nylon+Aluminum Package Contents: 1 pair x rear view mirrors 1 pair x adapters Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.