1. The knob is fixed for easy adjustment
2. The clip has silicone inside, which does not hurt the phone or the rearview mirror
3. 360 degree free rotation, easy to adjust the viewing angle
4. Applicable mobile phone size: 4-5.8 inches
5. Clamping width: about 5-9.5 cm
6. Installation size: suitable for car rearview mirrors with a thickness of 1.8-5.1cm and a width of 5.5-8cm
7. Size: about 15.5x7.8x12.2cm
8. Weight: about 170 grams