Before Installation Notes1. Tips 1: Test before installation When testing, do not remove any protective film or tags. Please pay attention to the problem of static electricity. Before attempting any repair, be sure to ground yourself is an ESD (electro static discharge) strap. This will prevent static electricity from damaging the electronic components within the device. Ensure you wear eye protection and use caution not to cut your finger with the glass splinters. 2. Tips 2: Simulates testing Screen replacement is very fragile product. We strongly suggest test before installation. Please simulates testing, which means device apart, (motherboard + LCD or screen) connected audio cable and new replacement, power on, test finished. If test OK, please install it. If it can not show, please contact us at the very first time. And please do not force it to be installed in device. We will not be responsible once the screen is installed. 3. Tips 3: Do not over-bend cable Please make sure LCD cable Do not over-bend. Over 90 degrees bent will cause black display. About the product1. Replacement front screen outer glass lens for MacBook Pro 15 A1286 2009-2012. 2. Replace the old, broken, cracked, damaged one. 3. Make your device look more refreshing than ever. 4. Completely fit and work. 5. Each item has been checked and in good condition before shipping. 6. Professional installation is highly recommended. We will not be responsible once the screen is installed. Specification: General Compatible with Apple: MacBook Pro 15.4 inch A1286 (2008 - 2012) Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 45cm * 31cm * 5cm / 17.72inch * 12.2inch * 1.97inch Qty per Carton 40 Carton Weight 21.00kgs / 46.30lb Carton Size 42cm * 46cm * 32cm / 16.54inch * 18.11inch * 12.6inch Loading Container 20GP: 431 cartons * 40 pcs = 17240 pcs40HQ: 1001 cartons * 40 pcs = 40040 pcs