1. High quality computer case bottom cover screws for Macbook Pro 13.3 inch A1278 / 15.4 inch A1286 / 17 inch A1297
2. Replace your broken or unworkable part with a new one
3. Each item has been checked and in good condition before shipping
4. Highly recommend professional installation. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts
