The middle frame is designed to support the LCD screen on the Samsung Galaxy S7 (with small components) for a successful and stable display. If the LCD support frame is broken during the smartphone replacement process or if you wish to refurbish your smartphone, you can find a new one for replacement. This middle frame comes with pre-installed small components. The volume buttons and the power button are located on both sides to reduce any unnecessary issues. High-quality materials, professional manufacturing, and precise mechanical processing. It is expected to be 100% compatible. Professional installation is recommended. Compatible with Samsung Galaxy S7 (Black).