COSMOS Ultra Thin silicone soft keyboard cover skin for Logitech Wireless Touch Keyboard K400 and K400r (Black) ONLY for Logitech Wireless Touch Keyboard K400 and K400r (NOT for K400 Plus) Equipped with a numeric keypad and special function keys printing especially for Logitech keyboard K400 or K400r (Old version), Please note it is NOT for Logitech Wireless Touch Keyboard K400 Plus (New Version).. Waterproof and dustproof, protect your keyboard against spills, dust, and other contaminants Silicon Material. Flexible, Washable and easy to remove for cleaning or disinfecting Please be advised that this silicone keyboard skin does not cover the tracking pad.