this thing fit perfectly onto the Macbook Air 3rd generation ! and since the key be black no one can even tell you have a cover on ! I have now officially grubby finger proof my keyboard . however , those buy this for the 3rd gen Macbook air , the top f key row , the print label on the key cover do not quite match up with the actual key . the power key be label as the Eject key instead . no biggie , I think I can handle a few mismatch on the top row of key I hardly use anyways . if they come out with one specificially for the new Air , I would get it for sure . how can you beat this price ? update : the design of the air have the speaker come from the keyboard ... have a cover on the keyboard do block some of the sound ...