1. Compatible models - Old MacBook Pro 13/15/17 inch Model A1502/A1425/A1278/A1398/A1286 (2009-2015 Released) - Old MacBook Air 13 inch Model A1466/A1369 (2010-2017 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. 2. Not compatible - 2016-2020 MacBook Pro 13/15 with/without Touch Bar: A1706/A1707/A1708/A1989/A2159/A2251/A2289 - 2018-2020 MacBook Air 13 inch: A1932/A2179 - iMac NEW Magic Keyboard; ALL EU Layout keyboards 3. Protection and durability - Waterproof and dustproof; provides full protection for your MacBook keyboard against dust, liquid spills (coffee/beer/milk), key wear, contaminants, and more 4. Precise fit - Each key is individually molded to fit your MacBook keyboard - US Layout only (the difference between US and Europe layouts is the Enter key: US Enter is rectangular, Europe Enter resembles a “7”) 5. Use scenarios - Students in classrooms or libraries who want to protect against incidental spills and dust - Office workers in high-traffic, spill-prone desks to guard against coffee or water spills - Travelers who need on-the-go protection for keyboards in bags or during commuting