1360 Degree Rotation: These left right bike rearview mirrors feature extended arms and larger mirrors, with 360 degree rotatable design, providing you with a wider field of view. 2Excellent Glass: The bike rearview mirror is made of excellent glass material, which can effectively prevent breakage, scratches, and glare, ensuring stable and safe cycling. 3Applicable Bar End: This bike mirror is suitable for bar ends with a diameter of 1517.5mm, 17.520mm, suitable for electric bikes, road bikes, mountain bikes, motorcycles, etc. 4Easy Installation: Equipped with screws and wrenches, simply place the rearview mirror on the bike handlebar and install it with screws, which is efficient and convenient. 5Durable Material: The extension arm of the bike rearview mirror is made of nylon fiber material, which has high strength, impact resistance, and can be used in various environments.