1. Installation aperture: 8-10mm 2. Applicable mobile phone width: 5.5-8.5CM 3. Installation range: suitable for all 8-10mm vehicles with rearview mirrors 4. It can be installed on battery vehicles, motorcycles, electric tricycles, ATVs and other transportation tools, with a particularly wide installation range 5. All aluminum alloy material, the installation is very firm 6. The 360-degree rotatable design allows you to freely adjust the installation angle of the bracket, which is very user-friendly 7. Suitable for 4-6.5 inch screen mobile phone, flexible width adjustment 8. Installation method: rearview mirror installation