1.COMPATIBLE WITH: ONLY 2020 Version MacBook Air 13.3-Inch with Touch ID and Retina Display (Modell A2179, US keyboard layout). NOT FIT FOR 2018-2019 Macbook Air 13-Inch. 2.MORE PROTECTION for KEYBOARD: Waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboards life. 3.ACCURATE KEYS: Every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. 4.0.13 MM/0.005 IN THICKNESS: Ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing. 5.Washable & Reusable: Without affecting the backlight of MacBook keyboard. Easy to apply and remove for cleaning or disinfecting. It can be directly flushed by water and become clean after being slightly scrubbed, then duplicate uses.