Give an active indoor cat room to run with this solid wood exercise wheel, sized for cats weighing 17 to 25 lbs and standing 43.3 inches in outer diameter with a 39.37-inch inner diameter and 11-inch-wide track. The 0.5-inch-thick wood construction and widened 13.31-inch base keep the wheel stable during vigorous play, while the narrow 0.2-inch running gap helps protect paws. A built-in silent wheel and noise-reducing base holes cut running noise for quieter play at night. Rated for a load capacity of 150 to 190 lbs, the wheel ships with pre-installed hardware, a screwdriver, gloves, and a cat teaser wand to help train your cat to use it. The looped carpet track mat detaches for easy spot cleaning, and a locking mechanism lets you fix the wheel in place so it can double as a resting perch when playtime is over. At 40.9 lbs, the wheel is a sturdy, freestanding piece of cat furniture.