Kitty City Kit A Cat Magnet! Your cats will love it!!! Easy to change modular design to fit any space. Lightweight, and easy to move. Scratching, lounging, playing, jumping, hiding in different levels! Easy to assemble and clean. Modular design - add more Kitty City modular products for your cat's individual lifestyle. Encourages an active lifestyle for your cat, without being detrimental to your living room.