1. Material: Polycarbonate plastic 2. Suitable model: For Macbook Pro 15.4 inch 3. The polycarbonate hard case material provide a ultra-thin and lightweight protection for the laptop 4. The convex rubber foot-pad and vent at the bottom case can make the heat dissipation more effectively 5. Size: 37cm x 25cm (approximate) 6. If you are not sure of the model of yourlaptop, you can see at the bottom of the laptop. Number at the bottom of the laptop 15.4 inch is A1286Specification: General Compatible with Apple: MacBook Pro 15.4 inch A1286 (2008 - 2012) Package Weight One Package Weight 0.49kgs / 1.07lb One Package Size 37cm * 25.5cm * 3cm / 14.57inch * 10.04inch * 1.18inch Qty per Carton 40 Carton Weight 16.50kgs / 36.38lb Carton Size 50cm * 35cm * 35cm / 19.69inch * 13.78inch * 13.78inch Loading Container 20GP: 435 cartons * 40 pcs = 17400 pcs40HQ: 1010 cartons * 40 pcs = 40400 pcs