【Multi-Purpose Application】: Bike rear view mirror is suitable for handlebar diameter 22.2mm-25mm. Bike mirror prefect for most mountain bikes, E-bikes, road bikes, city bikes etc. 【360 Degrees Rotation】: Bicycle mirrors for handlebars is designed with adjustable 360°rotation, which has wide field of view is adjustable to any viewing angle. Bicycle mirrors install at the end of handlebar can get better sight. 【Wider View】: The HD glass bike mirrors handlebar rearview mirror offers you a clear view and provides a wider rear view, bicycle rear view mirror, which is very helpful to keep you safe on the road. 【Sturdy and Durable】: Bike side mirrors is designed with high-impact frame which is made by ABS materials,and high-hardness aluminum alloy base clamp. The sturdy structure ensures that the bike mirror would not shake, crack or break, so it can be used for a long time. 【Easy to install】: Equipped with the appropriate screws and the tools, you can install and disassemble the bike mirror easily. We also offer a detailed installation instruction video on the listing to guide you through.