Features: 1. Stable structure, not afraid of pressure, streamlined base, two-wheeled silent, no pressure for 220-pound load-bearing test. 2. The spacious track runs smoothly without shaking, assisting the cats to exercise, and at the same time increasing the fun space of the cats. 3. Using rollers to run quietly, comfortable and no noise. 4. Anti-skid and wear-resistant, so that cats are full of vitality and walk fast every day, and the running vision is more open. Specification: Color: Beige Overall Size: 176cmL x 40cmW x 174cmH Material: Particleboard, Natural Sisal Rope and Soft Plush Net Weight: 18kg Weight capacity: 15kg Design: Multi-Level design Package includes: 1 x Cat Tree 1 x Instruction Note: Due to measurement tool differences, measurement data may have 1-3cm error, please understand.