1.Material: zinc alloy, rivet magnet, silicone 2. Compatible with all sizes of mobile phones 3. It can still be adsorbed after wearing the mobile phone case 4. Upgrade the spiral hook to lock the air outlet and prevent it from shaking. 5. Thickened silicone cushion will not damage the phone or affect the magnetism spiral expansion 6. Widen and thicker clip, stable and not easy to fall off 7. Universal rotating ball design, supports 360° rotation, and the angle can be adjusted freely 8. Strong magnetic force, stable adsorption