VEVOR Cat Exercise Wheel, Large Cat Treadmill Wheel for Indoor Cats, 35.8 inch Cat Running Wheel with Detachable Carpet and Cat Teaser for Running/Walking/Training, Suitable for Most CatsQuiet and Noise ReductionLarge Inner DiameterConsiderate DetailsMulti-PurposeWheel LockRun into Health and HappinessOuter Diameter: 35.8 in/910 mm,Base (W & L): 12.52 in (31.8 cm) x 31.5 in (80 cm),Track Width: 10.2 in/260 mm,Suitable Cat Weight: 7-13 lbs,Weight Capacity: 130-170 lbs,Product Size (L x W x H): 35.8 x 12.52 x 38.2 in (91 x 31.8 x 97 cm),Inner Diameter: 31.5 in/800 mm,Item Model Number: GX4.0 M,Material: Wooden board,Weight: 31.97 lbs (14.5 kg),Track Length: 100.4 in/2550 mm