1. Precise and stable clamping, close fit 2. The knob has a vertical anti-slip design, which makes it easy to turn, the adjustable space height is about 5-13mm, which is suitable for clamping multiple models of mobile phones 3. The camera groove design is smooth and has anti-pads, which can effectively prevent damage to the camera when removing the screen and maintaining pressure 4. Anti-oxidation and anti-corrosion aluminum, tough and durable 5. Adjust the appropriate height, align the mobile phone camera with the camera protection groove, put it into the pressure-maintaining fixture and tighten it to maintain pressure safely. The operation is simple, convenient and fast 6. Purpose: mobile phone screen removal and pressure maintenance 7. Material: aluminum 8. Size: about 16.5 x 3.2 x 2.9cm 9. Weight: about 471g