Details: K&H has reinvented the wheel when it comes to cat scratchers and refill boards! The patent-pending K&H EZ Mount Scratcher Kitty Sill Cradle is curved to accommodate even the pickiest of kitties. It utilizes our innovative suction cups to mount to any window. The cardboard surface can be used for basking in the sun or to groom cat claws. Cat s will no longer want to scratch your furniture with the K&H EZ Mount Scratcher Kitty Sill Cradle in their mitts. Helps to keep cat nails healthy. Refill pads are available for purchase separately for years of feline entertainment. Multiple K&H refills fit this frame, making it easy to keep your precious kitty entertained.