1. It can be installed on vehicles with 8-10mm rearview mirrors, such as battery cars, motorcycles, electric tricycles, off-road vehicles, ATVs, bicycles, etc. 2. All aluminum alloy material, very strong installation 3. 360 degree rotatable design, easy to adjust the mounting angle of the bracket, easy to use 4. Scope: suitable for the width of the mobile phone installed in 5.9-8.7CM 5. Installation diameter: 2.2cm 6. Bracket aperture: 10mm 7. Size: 7.5x6.5x9cm 8. Weight: 164g