Made of durable polyester cloth, smooth but pliable, which not only keeps it intact from scratching but holds strong while your pets are playing. FUN MOUSE TOY & FOLDABLE: A dangling fluffy ball toy attached on one end to attract their attention, multiple cats can have endless fun at the same time. This tunnel could be foldable, makes you easy to store or take. UNIQUE TUNNEl DESIGN: This big pet tunnel provides a large room to hold more pets, and bring more fun to your cats, dogs or rabbits. In your pet’s eyes, it seems like a castle, maze, or amusement park.