Compatible with: Apple Macbook Pro 13.3 ONLY. Model: No. A1278 (Mid 2009 or Latest) WARNING: This case can't fit Macbook Air 13” White 13'' can't fit Macbook Pro 13'' with Retina Display. 1. The polycarbonate hard case material provide a ultra-thin and lightweight protection for the MacBook; 2. The convex rubber foot-pad and vent at the bottom case can make the heat dissipation more effectively; 3. Size: 33cm x 23.5cm (approximate) 4.If you are not sure of the model of your macbook you can see at the bottom of the Macbook. Number at the bottom of the Apple Macbook Pro 13.3 inch is A1278.