Turn any window into the best seat in the house with the new K&H Universal Mount Kitty Sill. Easily attaches to any window with 3 suction cups. No tools necessary. Uses the same advanced engineering strength as the original Kitty Sill requiring no need for Velcro or screws. Same great oval design and orthopedic foam. Easily attaches to most any window No tools necessary for installation Removable cover is machine washable