Everki The Shield 3 In 1 Notebook Screen Protector, Cleaner And Mouse Pad Laptop manufacturers leave very narrow keyboard to LCD screen tolerances in closed laptops, which over time leads to visible scratches on your LCD screen. The Shield protects against this phenomenon by sandwiching between your vulnerable LCD screen and keyboard, providing a soft anti scratch buffer. Aside from preventing the keyboard and palm rests from transferring dirt, oils, and scratch marks to the screen, the Shields microfiber surface can also be used as a cleaning cloth, or as a travel mouse pad thanks to its non slip rubber backing. The simple 3 in 1 design and portable size make the Shield a great addition to your travel kit.