Check the listing for details. Silent Runner Wheel 12" Regular Exercise Wheel for Sugar Gliders, Rats, Hamsters. Color: Orange, Condition: New. Listed at 33.99 USD. Click "Visit store: ZooPro" ^to view more pet product favorites! EXOTIC NUTRITION'S SILENT RUNNER WHEELSIZE: 12 INCH REGULAR ✔ Exotic Nutrition's Silent Runner Wheel is the most innovative wheel on the market, praised for its safety and silence. Ideal for: Sugar Gliders, Female Rats, and other small pets. ✔ Axle-free design eliminates the dangerous center axle bar that many pet running wheels have, reducing the risk of fur/tail entanglement and spine injuries. ✔ The Silent Runner rolls on dual ball-bearings, ensuring it spins smooth and quiet unlike many of the annoying squeaky wheels on the market. ✔ Heavy-duty stand allows for give, protecting your pet from joint pain caused by running on hard fixed surface. ✔ Running tracks have a textured non-slip surface for excellent grip. ✔ Front panel provides a pet-preferred enclosed running lane, giving your animal the comfort they want. Other Accessories: The Silent Runner Cage Attachment allows you to easily attach your wheel directly to the cage, to free up floor space and have the wheel be placed high up. The AutoClean Tracks have a perforated surface that allows urine and feces to fall through, decreasing cleaning time. The Silent Runner's Sandy Tracks have a soft, abrasive surface that naturally file down pet’s nails as they run! All sold separately. Approximate Size: 13.5" tall (on stand) x 5" wide x 3.5" wide track x 12" diameter Larger size available (12" Wide) for Hedgehogs, Male Rats, multiple Sugar Gliders, and other pets. Smaller size available (9" Small) for Hamsters, Gerbils, Mice, and other small pets.