Exotic Nutrition Silent Runner 12" Regular Wheel + Sandy Track + Cage Attachment - Pet Exercise Wheel Package Set - for Sugar Gliders, Female Rats, Hamsters, Mice and Other Small Pets

*****PLEASE ENSURE CAGE / CAGE DOORS ARE 14 INCHES TALL OR MORE!Exotic Nutrition's Silent Runner 12" Regular Wheel is the most innovative wheel on the market for its safety features and whisper-silent spin.MEASURES: 13.5" tall on stand, 12" wheel diameter, 3.5" wide track, 4" diameter openings.FEATURES:✔ SAFE - The axle-free design eliminates a dangerous center bar, reducing the risk of fur/tail entanglement, pet wrap-a-round, curvature of the spine, and other injuries.✔ SILENT - Innovative dual ball-bearings create a whisper-silent spin.✔ SANDY TRACK - Provides a soft, abrasive running surface to file nails.✔ NON-SLIP - Running tracks are textured, for excellent grip.✔ SANITARY - Wheel completely disassembles for deep cleaning, no nooks for feces to hide in.✔ SECURE - Closed off design with front plate for privacy, safety, and containment. With natural bean-shaped openings and a pet-preferred solid black rear wall.✔ HIGH QUALITY - Wheel stand, cage attachment, and hardware are made of heavy-duty metal, other parts made of high-quality plastic.✔ JOINT PROTECTION - The metal stand allows for give, protecting your pet from joint pain caused by running on a hard, fixed surface.✔ IDEAL FOR - Sugar Gliders, larger Hamsters, and other similar small animals (not suggested for chewers).What is dual ball-bearing technology? Two stainless steel ball-bearings are within the back plate of the wheel, ensuring the wheel glides smooth and silent. The bearings SPIN around the bolt as your pet runs, unlike annoying squeaky wheels on the market that have a center axle that creates friction and noise.