It is a conventional running wheel that features sealed ball bearings for smooth and quiet spinning and a solid surface for safety. For secure attachment, the wheel is mounted with three wing nuts. The center portion of the wheel is made of high quality plywood and the running surface is galvanized tin with rolled edges.
This is an OK wheel as long as you hang it from the ceiling of the cage. Otherwise the chinchilla could get caught between the wheel spokes and the wire stand.