Unique Design: It is an excellent design with 2 sight holes in the center. Your cat will enjoy sticking their head out through the peephole - The swing ball draws your cat into the tunnel and brings out your cat's natural hunting instincts. Colorful Tunnel: Rainbow colors can more arouse your kitten's interest. Give your cats more interactive fun than cat tents, cubes, scratching posts, feathers and mouse toys. Material: Strong spring steel frame with protective end wrapped with Tear-resistant 190T polyester taffeta, this cat tunnel is durable and comfortable, no risk of scratches and deformation. Foldable and Portable: This cat tunnel opens in seconds and can be folded easily and secured by provided elastic band for easy storage and carrying. Size: Size 120 long, tunnel opening diameter 25, perfect for most adult cats, kittens and rabbits in the door and the outside.