Materials: ABS,Aluminum Alloy Size: 15.5*13*10cm/6.10*5.12*3.94in. Applicable handlebar: 20-24mm/0.79-0.95in. Color: As shown in the figure Product features: 1. 360-degree rotation adjustment: The rearview mirror can be rotated 360 degrees according to different needs, meeting individual visual requirements and providing greater safety and convenience. 2. Wide-angle rearview mirror: The rearview mirror adopts a wide-angle design, providing a wider and farther view and better awareness of surrounding traffic conditions. 3. Lightweight: The rearview mirror is made of high-strength materials, lightweight, not easily damaged, and has a longer lifespan and can be used multiple times. 4. Easy installation: The rearview mirror comes with installation tools, making it simple and quick to install. The package includes: 1/2 pcs Bicycle rearview mirror