1. Large Space: Our large cat litter measures 23.6 inches 23.6 inches 11 inches and can accommodate cats up to 15 pounds. It can provide spacious space for your cat, suitable for cats of all sizes. Cats can have enough space to play and rest, and multiple cats can use it together, making it ideal for you and your pet. 2. MultiFunctional Cat Bed: This cat litter features a double layer design with a donut bed on the top and a tunnel style nest on the bottom. Cats can play through the tunnel to satisfy their adventurous nature and exercise their body. When cats are tired they can also sleep and rest in the circular center area of the donut, this multifunctional design meets both the cat's need to play and rest at the same time. 3. Easy to Remove Clean: The top and bottom of the donut cat litter has a zipper divider for easy disassembly and assembly, you can split the litter in half to use it, or stack it for storage when not in use. The detachable design makes it very easy to clean as well, you can clean every corner, hand washing is recommended, don't machine wash, you can use a dehairing brush to remove the hair if it sticks. 4. : A small hole is designed on the side of the cat's nest so that the cat can see the outside world from the tunnel, and the interaction between cats can be increased if multiple cats use it together.