Description: Sturdy: Cat Exercise Wheel is carefully built, and its solid structure can withstand the most enthusiastic feline exercise routines, ensuring fun.Material: Large Cat Running Wheel is made of wood, which is not only sturdy, but also has a color that blends with your home decor.Dimensions: The inner diameter of the treadmill is 70 cm, the outer diameter is 80 cm, the width is 32.5 cm, and the width is 5 cm. The base is 74 cm long, 39 cm wide, and 33 cm high. The overall product is 87 cm high, with a length and width of 80 cm and 39 cm respectively.Easy to assemble: Cat Treadmill is a 1 piece model, easy to assemble and start using right away.Suitable for Cats: Cat Sport Toy is designed for both large and small cats, providing them with the necessary exercise they need indoors. Size Chart: Track inner diameter: 70cm/27.56inchOuter diameter: 80cm/31.50inchWidth: 32.5cm/12.80inch: 5cm/1.97inchBase: Length 74cm/29.13inch, Width 39cm/15.35inch, Height 33cm/12.99inchOverall: Height 87cm/34.25inch, Length 80cm/31.50inch, Width 39cm/15.35inch Package Includes: 1Cat Running Wheel Note: Please allow slightly errors due to manual measurement and different monitors.