" High quality material: Made of ultra-durable and tear-resistant polyester, this cat tube can be used indoors and outdoors. It is also perfect for the lively cat that always wants to scratch The tunnel will remain in excellent condition and the center will not collapse like other cat tunnels. Best Toy for Your Pets: With 5 extra-long and durable tunnels, built-in crackle crinkle paper, peephole, hanging bell toy, make your kitten interact for play and exercise. Provide hours of fun unlimited for your pets. Easy to store: With a supplied stuff sack, our tunnel folds up in seconds for easy travel and storage. Take this cat play tunnel with you anywhere, your pet will never be bored. More Fun: The 5-way tunnel gives your cats more ways to play than a simple straight tunnel and more interactive fun than tents, cubes, scratching posts, feathers and toys for cats. Enough space: Each tunnel is approx. 9.84"" diameter x 11.81"" long when expanded and the middle hole is 4.92"" diameter. This cat tunnel is designed for all cats and small animals such as kittens, puppies, dogs and rabbits can play and stay at home. "