The Keyboard Cap is an extremely easy-to-use keyboard protector. It keeps bacteria, dust, and liquids out of your keyboard and makes cleaning and replacement a snap. The Keyboard Cap works like a shower-cap for a standard-sized keyboard, it is a film with a built-in elastic band that can be pulled snugly under the edges of your keyboard. The film material is waterproof, so spills, debris, and bacteria stay out of your keyboard"s nooks and crannies. It is also thin, flexible, and transparent, so you won"t lose the typing feeling or visibility of your keyboard. When grime starts to accumulate, you can clean the surface of the Keyboard Cap very easily compared to an uncovered keyboard. In sterile environments, the Keyboard Cap is cost effective and can be quickly replaced to minimize user cross contamination. It is perfect for hospitals, clinics, offices, stores, libraries, or anywhere else where you want to keep your work space clean. Customer service support information: Toll Free: 1-888-248-2019, Email: support@greenonionssupply.com, Product specifications: Contents : 1 Keyboard Cap, Fits Keyboards 15 ¾" to 19 11/16" wide (400 mm to 500 mm), 6"-8" deep (152 mm to 203 mm), Thickness: 0.025 mm (1 mil)