Compatible with: MacBook Air 11/11.6 No. A1370 and A1465 released after Oct. 20th 2010 WARNING: This case can't fit Macbook White 13'' can't fit Macbook Pro 13'' with Retina Dsplay can't fit Macbook Air 13'' 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: 31cm x 20cm (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 Air 11.6 inch is A1370 / A1465