1. Material: ABS+silicone2. Scope of application: 10-16 inch headrest, mobile phone ruler width within 9 cm3. Hook + bracket, two functions4. 360 degree rotation, front row available5. Not easy to fall and shake6. Can be folded and hidden when not in use7. High-strength magnetic force, stable adsorption8. Lock it firmly while holding the phone9. Size: 12x5.5x3 cm10. Weight: about 80 grams