Specifications: Easy to install and remove manually. For handlebars with a diameter of about 15 - 35mm. High-strength ABS material, shatterproof chrome mirror, compact design and durable to use. High definition and wide viewing angle, fully adjustable 360 degree rotation. With this safety mirror, you can easy to know what#39;s behind you,and find any potential insecurities in time, enjoying your trip. Item Name: Bike Rear View Mirror Material: ABS + Rubber + Glass Quantity: 1Pc Compatible Handlebar Size: 15mm - 35mm Features: Easy to Install, Wide Viewing Angle, 360 Degree Rotation Diameter: 5cm/1.97quot; (Approx.) Length: 7cm/2.76quot; (Approx.) Notes: Due to the light and screen setting difference, the item#39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bike Rear View Mirror