Mijing BY-20 Universal Mobile Phone Back Cover Screen Maintenance Pressure Retaining Fixture for LCD Screen Back Cover Middle Frame Holding, MIJING BY-20 Mobile Phone Screen LCD Clamp Fixture Mobile Repair Platform Fixing Maintenance Repair Tools. Features: Mijing BY-20 Mobile Phone Screen/Back Cover Universal Maintenance Pressure Retaining Fixture. Applicable to the assembly of rear shell and mobile phone screen removal. Suitable for both mobile / tablets. Suitable for fixed pressure holding of the screen / back cover. Working area 17 X 8.5cm. Operation: 1. Install the Phone. 2. Adjust the knob to the proper height of the phone. 3. Pull the pressure bar. 4. Push down rod complete lock. Package includes: 1 x Retaining Fixture