1. Builtin BellsFoldable cat cube, collapsible cat tent, the cat tunnel features builtin bells and 3 openings for your cats to play with. The unique design is attractive to cats, and you can train them with various games at different openings. Your cats will surely have fun with this cat cube. 2. Lightweight Cat TentFoldable cat cube, collapsible cat tent, the cat tunnel is lightweight, allowing you to move it effortlessly. It's also convenient for storage when not in use, helping you keep your home clean and tidy. 3. Dimensions: The foldable cat cube, collapsible cat tent, is designed as a square measuring approximately 40 x 40 cm. The diameter of each opening is about 19 cm, making it suitable for cats, kittens, small dogs, etc. 4. UsageMade of polyester fabric, the foldable cat cube, collapsible cat tent, is for cats to play with and for longterm use. Additionally, you can easily clean this cat cube with a damp cloth or water.