Clear Vision: Bike Mirror is made of 5.71x2.13in HD glass plate, the surface is smooth and easy to clean; Provide accurate images for riders without distortion , allowing for more accurate judgment of distance and speed, increasing riding safety. Adjustable mirrors: Bike side mirrors are adjustable with 360° rotation and 180-degree mirror seats, allowing you to adjust the angle you need to ensure maximum visibility while riding. Sturdy and durable: Bike rear view mirror is made of high-strength ABS material shell and high-hardness aluminum alloy base clamp. The high-impact frame design ensures that the bike mirror keeps the bike mirror stable even during bumpy rides or off-road adventures. Wide application: Handlebar Rear View Bike Mirror is suitable for most bicycles with handlebar diameter of 22mm-25mm (0.87inch-0.98inch), such as mountain bikes, electric bikes, road bikes, city bikes, etc. Easy to install: Equipped with all the tools needed for installation, the bike mirrors are very easy to install and adjust, ensuring a perfect fit with most bikes. Provide you with a reliable long-term user experience. Colour:Black Material:plastic Package Contents: 1 pair x glass Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.