Product Highlight(s): Super Pet Run-Around Exercise Wheel for Small Pets (Regular, 5-3/4 Inch Diameter) Run-Around Wheels provide free-wheeling fun for your furry friend! The 8" Regular Run-around Wheel is perfectly sized for all hamsters and gerbils. These stylish wire wheels are available in a variety of four fun colors. Each wheel is covered in an extra-durable, epoxy-coated surface making them easy to wash as well as rust resistant. Run-around Wheels feature Super Pet's unique 'tail-safe' and E-Z exit design. Please note: Color specification is unavailable on this item