Protect your Adesso Multimedia and Optical Trackball AKB-320UB - , tra computer keyboard while you use it with an Anti-Glare KeySkin® Keyboard Cover by CompuCover®. Keyboard Covers are designed to stay on 24 hours a day to protect from dust, spills, staples and many other contaminates that could damage your new Adesso Multimedia and Optical Trackball AKB-320UB - , tra keyboard. KeySkin® Keyboard Covers are durable and can be cleaned quickly and easily with soap, bleach, most popular health care cleaning products, and a damp sponge to help stop the spread of germs.