Run-Around Wheel for hamsters, gerbils or other small animals. - provides personal fitness for your pet. - encourages exercise. The Run-Around Wheel is designed to be very versatile and perform perfectly inside any pet's home. Fits on the floor of any cage or glass aquarium or securely hangs on the side of any wire home. The mesh running surface is safe, sanitary and completely comfortable for your critter's paws. A safe and sarisfying stationary spinner, specifically sized for your small animal. - Chew-proof construction - "Tail-safe" stand - smooth and quiet spinning - safe mesh running surface.