Only Fit: Compatible with Old MacBook Pro 13/15/17 inch models A1502/A1425/A1278/A1398/A1286 (20092015 released); Old MacBook Air 13 inch models A1466/A1369 (20102017 released); Old iMac Wireless Keyboard US Layout. Please double check your MacBook's model number Axxxx on the bottom of the laptop to determine compatibility. Not Fit: 20162020 MacBook Pro 13/15 with/without Touch Bar models A1706/A1707/A1708/A1989/A2159/A2251/A2289; 20182020 MacBook Air 13 inch models A1932/A2179; iMac Magic Keyboard; All EU Layout keyboards. Effective protection: Waterproof and dustproof; keyboard cover provides full protection for your MacBook keyboard against dust, liquid spills (coffee/beer/milk), key wear, contaminants and more. Precise matching: Every key is individually molded to fit your MacBook keyboard. Only fits US Layout (the difference between US Layout and Europe Layout is the Enter key; US Layout Enter key is rectangular, Europe Layout Enter key is '7'). Applications and use scenarios: Use at home or in the office to guard against beverage spills while typing. Use in dusty environments such as workshops or classrooms to block dust and debris. Use while traveling or commuting to protect against wear and spills during transport.