This bicycle rear view mirror is easy to install and it will make your riding safer the mirror can be closed so it won't increase the resistance of riding.Features:This rear view mirror can be mounted on the handlebars.It can be rotated 360 degrees and you can see the distance of 20-40m behind.Suitable for 21-22mm handlebar bicycle.Waterproof and non-slip light button for long service time.Easy to install.3 light modes adjustable.Specifications:Color: blackMaterial: PVC acrylicBattery: 1 * CR2032 3V 240mAhItem size: 40 * 29mm / 1.6 * 1.1inItem weight: 16g / 0.6ouncePackage size: 70 * 50 * 30mm / 2.8 * 2.0 * 1.2inPackage weight: 50g / 1.8ouncePacking List:1 * Handlebar Light
