Description: Color cross cat tunnel: The length of each tunnel is 45cm , Inlet diameteris 25cm and Upper entrance is 15cm. Four-way shape, more fun, provide spacious room for adult cats and kittens. Colorful stitching of eco-friendly fabrics can attract the cat's attention that makes it an amazing place to hide and stalk. Internal hanging ball: High-quality elastic hair ball, swing left and right,lure the cat into the tunnel , for cats and satisfies cats with hours of play and fun. Built-in crinkle paper gives cats rustling sound. Vent on the middle top allows cats to freely get in and out to satisfy cats instinct to explore. Foldable for easy storage without taking up space. Size Chart: Material: Polyester Size: Length of each tunnel: 46cm/18.11inch Inlet diameter: 25cm/9.84inch Upper entrance: 15cm/5.91inch Package Includes: 1 Piece 4-Way Cat Tunnel Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!