1. High-definition convex mirror: It uses a wide-angle acrylic convex mirror with a diameter of 3.1 inches. You can get a clearer and broader view and improve safety. You can see the road behind without turning around. The handlebar mirror bracket has an adjustable strap, which is suitable for handlebars with a diameter of 15 - 35mm and is easy to install and remove. It is suitable for city cycling, short and medium - distance cycling, and commuting. 2. Adjustable settings: The base can rotate 360 degrees, and the mirror can rotate 180 degrees, so you can observe all directions behind. 3. Easy to install: No tools are required. It is easy to install and use. Install it on the handlebar and just fix it with a rubber band. It is fixedly installed and will not loosen. This product is made of high - quality ABS, a combination of plastic and glass, which is impact - resistant, strong and durable. It can be installed on either the left or right handlebar. By using our bicycle handlebar mirror, you can ride more safely. It is an excellent accessory for bicycle enthusiasts. 4. Product description - Product features - 1. It can rotate 360° flexibly and can be adjusted to any angle you want. - 2. It is made of high - quality materials, lightweight, durable and rust - resistant. - 3. The mirror is polished, waterproof and dustproof, so you can have a clear view while cycling. - 4. It has a wide range of uses, such as mountain bikes, road bikes, folding bikes, mountain bikes, electric scooters, etc. 5. Notice - 1. Remember to tear off the surface protective film before use. 6. Package includes: 2 * Bicycle rear - view mirrors