Design to be compatible with MacBook Air 11 Inch (Models: A1370 and A1465).Provide full protection for your MacBook keyboard against dust, liquid spill (coffee/beer/milk), key wear, contaminates and more.Engineered to fit precisely to your MacBook keyboard (US ANSI).Made with premium engineering grade durable non-toxic material, ultra thin to 0.3mm won't hurt the screen and made it easier for typing.Easy to apply and remove, completely washable and reusable. MOSISO 1 year warranty on every keyboard cover.