The product has 3 sizes:
11-12 inch is small IN-CA11 suitable for 12 inch notebook
13-13.3 inches is mediumIN-CA13Suitable for 12.5-13.3 inch notebook
14 inch IN-CA14 is suitable for 14 inch notebook
15.6 is the large IN-CA15 suitable for notebooks below 15.6-inch
13.3 inch introduction:
11.6 inch introduction:
14 inch introduction:
15.6 inch introduction: