1. Replacement screws / bolts set for iPad Pro 12.9 2017 A1670 A1671 A1821.
2. Repair and fix your broken or unusable item with it.
3. Each item has been checked and in good condition before shipping.
4. Completely fit and work.
5. Professional installation is highly recommended. We will not be responsible for any damages to your cellphone/mobile phone that you may cause during the changing of replacement parts.