Dancing Music Colorful Printing Piano Ultra-thin Silicone Keyboard Cover for Macbook Air 13 & Macbook Pro 13 15 17 with or Without Retina Display (US / European ISO Keyboard)(Green) Handmade Skin - They are durable, thin and soft with a cashmere feel. Beautiful dancing music artistic piano design. It fits nicely over the keyboard, quiets the typing a bit which is very convenient for typing at night. Aside from being beautiful they protect your keyboard from spills, crumbs and dust. Soft, ultra-thin, and washable. Deliberately lower key height to give you better type feeling, especially after long time typing. Fits for MacBook Air 13", MacBook Pro 13", 15", 17", Wireless Keyboard. Available in both US(ANS) and EU(IOS) versions.