This is a Universal Keyboard Cap 3-pack, designed to protect most standard sized keyboards with numeric keypads (it is not suitable for ergonomic keyboards or keyboards with extra-large borders). The Keyboard Cap is an easy-to-use, semi-disposable Protector that functions like a shower cap for keyboards. It is a highly flexible and transparent plastic sheet with an elastic band that allows you to quickly and easily attach the Protector. This design allows for protection from crumbs, hair, dust, spills, and other debris, while typing remains unhindered and free. The semi-disposable design means the keyboard is designed for several months of intensive use and abuse, and it is easy to clean and sterilize for use in public workspaces. This 3 pack gives you spares so you can swap out the Keyboard Caps for regular cleaning.