1. Material: aluminum alloy 2. Installation method: handlebar installation 3. Installation diameter: 2.2cm 4. Scope: suitable for 4-6.5 inch mobile phone installation and use 5. Installation range: can install battery car, motorcycle, electric tricycle, off-road vehicle, ATV and other transportation tools 6. 360 degree rotatable design, easy to adjust the mounting angle of the bracket, easy to use