Keyboard COVER Compatible with Microsoft 4000 - Part 878E122- Protects from Mold, Spills, Dirt, Grease, Food, and Bacteria - Easy to Clean and Disinfect. PROTECTS YOUR KEYBOARD FROM REGULAR USE. Keeps your keyboard clean from liquid spills,food, dust, oil/grease, sand, moisture, pet hair, pathogens, and viruses and prevents bacteria from growing between and under the keys. KEEPS GERMS ON THE SURFACE. Keeps germs and dirt on the surface of your computer where it can be easily cleaned and disinfected NO LATEX - No need to worry about allergies, because these covers have 0 signs of latex. EASY TO DISINFECT - Simply wipe down the keyboard with a germicide wipe of your choice! Reduces the hassle of having to clean between keys, or removing keys to clean beneath them. EASY TO USE - Adheres quickly and easily to the keyboard using double sided adhesive tape. The snug fit makes cleaning a breeze, as the keyboard can be cleaned without removing the cover. For a slightly tighter fit, use a blow drier approximately 8" from the cover after attached on the lowest setting for roughly one minute