This is a Custom TPU Keyboard Protector for Apple Macbook Air (2008-2010 versions). It fits all the US-layout aluminum non-unibody model of the 13-inch MacBook Air,.
The Protector sheaths every key in durable and flexible thermoplastic polyurethane, keeping out dirt, spills, bacteria, and other contaminants. This protection also makes cleaning your keyboard much simpler: just remove, wash, and dry the Protector before replacing it! The TPU material is precision molded to less than ultra-thin 0.25 mm on the keys, half the thickness of some of our competitors, which provide transparent protection that easily fits inside a closed MacBook laptop. The slim profile also provides an balanced typing experience, providing a smoother texture than our silicone protectors and avoiding the sticky feel of older and thicker keyboard covers.
– One TPU Keyboard Protector
Installation is simple: line the protector up with the keys beneath.
Remove the protector first, then wash it with soap and water in the sink or wipe it down with rubbing alcohol. Be sure it is fully dried before reattaching it to your laptop, and do not intentionally crease the protector.