😻 Space Saving Door Hanging Cat Shelves It mounts on doors. So your cat has a shelf to climb on and it doesn't take up much space! And we all know cats love to be at high-up places! 😼 Minimal Assembly Required The back panel is one single solid piece, providing rigidity and ease of assembling. 🇺🇸 Handmade in USA It's hand crafted in California using Baltic Birch plywood, the strongest plywood. The shelves are sturdy and durable. Suitable for cats up to 30 lbs. • Material: Baltic Birch, Carpet • Fits door thickness between 1-3/8'' to 1-3/4'' • Weight capacity: 30 lbs • Shelf size for 50 inch versions: 7x11" • Shelf size for 60 inch versions: 8x13"