Rear Cover for iPhone 8 is made of glass and once it's broken, Rear Glass Cover can only be replaced by replacing the whole housing as shown on picture for a clean and flawless end result. In this case we have to disassemble the phone to move internal components from one housing to another new housing. We will be able to repair your device within approximately within 2 hours. Please call our stores part's availability. Estimated Repair Time: 1.5 hour Repair Cost: $109+tax