Check the listing for details. Treadmill Wheel 14" Black - Flying Saucer Pet Exercise Wheel - Durable All Metal. Color: Green, Condition: New. Listed at 71.99 USD. Click "Visit store: ZooPro" ^to view more pet product favorites! TREADMILL WHEEL 14" BLACKAPPROXIMATE SIZE: 14" Diameter FAST SHIPPING✔ Ready to ship - orders get shipped the same or next business day they are placed✔ Speedy delivery - average shipping time is 3 business days FEATURES:✔ QUALITY - highest quality exercise wheel on the market for chewing animals✔ VERSATILE - Ideal for Hedgehogs, Degus, Hamsters, Sugar Gliders, and Female Rats✔ QUIET - Ball-bearings create a virtually silent spin - "things roll quieter than they slide"✔ DURABLE - All-metal design is chew-proof and finished with a non-toxic powder coat✔ HEALTHY - The saucer shape prevents spinal injuries caused from regular circular wheels Maintenance: Treadmill wheels have a center bearing cartridge that is subject to wear-and-tear over time with continuous use, but a replacement will make any old wheel work like new. Some go years without replacing it, while others may have to replace it once or twice per year. Replacement bearing cartridges available on Exotic Nutrition website. ZooPro sells exotic animal foods and accessories that are manufactured by Exotic Nutrition Pet Supply Company™. Exotic Nutrition has been the industry leader of exotic animal products since 1998, specializing in sugar gliders, hedgehogs, prairie dogs, marmosets, degus, skunks, opossums, chinchillas, rats, hamsters, gerbils, squirrels, rabbits, guinea pigs, rodents, ferrets, chickens, bluebirds, wild birds, monkeys, marsupials, reptiles, amphibians, & more