1. Package Includes: 2 pcs bicycle rear view mirrors, with wide vision when riding, providing a more comfortable experience in daily life. Bicycle Rear View Mirror, Universal 360° Adjustable, Stainless Steel HD Bicycle Rear View Mirror, Flat Handle, Racing Rotating Rear View Mirror, Mountain Bike. 2. Safety Rearview Mirror: The bicycle rear view mirror is made of quality acrylic, ABS, and PVC materials. It is waterproof and dustproof, durable, and enhances stability when driving on rough roads. The convex bicycle rear view mirror provides a wide field of view, improves clarity, and increases safety while cycling. 3. Adjustable Flexible Angle: With full 360° rotation, the bicycle rear view mirror can be adjusted in any direction, allowing comfortable visibility from all angles behind you. The rear view mirror can also be adjusted to 180° for better traffic vision, ensuring safer bike rides. 4. Easy to Use: The MTB rear view mirror comes with an adjustable rubber strap, fitting handlebars with a diameter of 15 35mm. No additional tools are required—simply use the elastic band to secure the closure.