Crocodil Graphics Nebula Keyboard Stickers for MacBook Pro 13, 15, 17 and MacBook Air 13" (Nebula) Nebula Keyboard Stickers for MacBook's. (NOTE: This is Not a Cover) Engineered to fit precisely to your Macbook Pro with or w/out Retina Display and MacBook Air 13-inch Amazing Thickness to minimize typing interference. Preserve the elegance of your Macbook Made with highest quality material that makes Easy to apply and take off and do not leave residue