Durable and safe design ensures long-lasting use - Anti-deform design and a tear-resistant steel frame keep the cat tunnel sturdy and secure, while the wear-resistant fabric extends durability for daily adventures. Enhanced play interaction for cats - Includes a trackable play ball and a TS-Tunnelstruktur to promote natural exploration and jump instincts, with peek holes that boost interactive engagement for cats. Effortless portability and setup - Collapsible design enables quick setup and easy relocation, adapts to flexible spaces, and stores compactly in a portable bag. Versatile for multi-pet households - Designed for households with multiple pets, it provides smooth passage and flexible turns for comfort, fits most sizes, and adapts for shared enjoyment. Use scenarios - Use at home for one or more cats to encourage exploration, exercise, and interactive play. - Use in small living spaces or rooms where space and storage flexibility matter. - Take on trips or visits; collapsible design and portable bag make it easy to transport and set up quickly.