Why install a rearview mirror? A road bike is a means of transportation when riding. Many people like to exercise by bicycle, but safety is the most important. For the rider, the motor vehicle on the road is a big source of danger. It is necessary to accurately identify the current road condition. It is the hand installed on the road car. Put the end, do not hinder your riding, and stylish. Description: The rearview mirrors of this product are optimized for mounting on the handlebars. The mirrors can be opened and closed. The driver can close the cover to protect the rearview mirror when not in use. It has 360-degree control and allows the rider to see the back. At a distance of 40 meters, our design reduces air resistance to minimize interference with the starting hand. Specifications: Product name: RICHY Parts: Rearview Mirror Material: Polycarbonate (PC), Acrylic Weight: about 16g Packing size: about 72mm*111mm*60.5mm/2.83*4.37*2.38in Visible distance: within 20 meters (bicycle) / 40 meters (large car) Handle: 21-22 Color: Black Packing: color box List: 1* rearview mirror 1* hex wrench