OS X is loaded with shortcuts! Knowing these shortcuts can improve your workflow and speed up commonly used functions. Our OS X shortcuts keyboard cover has shortcuts for Safari, Mail, Finder and Primary shortcuts that work for most applications. Our OS X shortcuts keyboard cover is a great way to also learn some new shortcuts and some you might have forgotten. The KB Covers OS X shortcuts keyboard cover is compatible with all versions of Apple OS X. Utilizing a multi-color printing process, the editing keys are color-coded and heat fused to ensure long lasting durability. Compatible with: 13-inch MacBook (US Keyboard) 13-inch MacBook Air (US Keyboard) 13-inch aluminum unibody MacBook w/ Black Keys (US Keyboard) 13-inch aluminum unibody MacBook Pro w/ Black Keys (US Keyboard) 15-inch aluminum unibody MacBook Pro w/ Black Keys (US Keyboard) 17-inch aluminum unibody MacBook Pro w/ Black Keys (US Keyboard) They will not slip or slide. In addition, the covers have a silky smooth feel so they are soft and comfortable to the touch and will not restrict typing. KB Covers also safeguards your keyboard from dirt, spills and wear and tear, allowing you to protect your investment in your notebook computer. They are hand washable and easy to keep clean.