Features: The 360 degree rotating styles provide a comprehensive view, ensuring security ride. Good quality reflective mirror face effectively improves nighttimes cycling speed and enhances driving security . Easy to install, suitable for electric bicycles handlebars of various diameters, simple and fast. Consist of durability materials, shock and drop resistant, suitable for cycling on complex road conditions, and increasing the lifespans of the mirrors. Users who travel long distances by bicycles need a more comprehensive view to monitors traffics conditions behind them and ensures security. Specifications: Color:Two Elections Dimension:20-23m/7.87-9.05in Component:Resins Package Includes: 1pc 360 Degree Rearview Mirrors note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.