Check the listing for details. Autoclean Track - for Silent Runner Wheel 9" Yellow - Exercise Wheel Accessory. Condition: New. Listed at 14.99 USD. Click "Visit store: ZooPro" ^to view more pet product favorites! YELLOW AUTOCLEAN TRACKAPPROXIMATE SIZE: Track is 2.5" wide for Silent Runner 9" 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:✔ LOW MAINTENANCE - Decrease cleaning time with this auto-cleaning track ✔ SIMPLE - Perforated track allows feces, urine, & other pet debris to drain from wheel ✔ HEALTHY - Increases ventilation within wheel ✔ CONVENIENT - Prevents waste and dirt from building up on wheel surface. ASSEMBLY INSTRUCTIONS: Remove the standard running track on your Silent Runner wheel. Begin by inserting the corner of the AutoClean Track into the molded edges of the back panel (black) for the Silent Runner wheel. Once the corner edge is pushed in, begin working the AutoClean Track all the way around the wheel into the groove. Once completely in the groove, push the clear connector into place connecting both ends of the track. Set the front wheel panel on the AutoClean Track, and starting with the side away from the connector, work one small section of the sandy track into the front wheel panel groove (panel with the openings).Once a small section of the track is in the groove, apply pressure all the way around the wheel until the track is in place. You may need to push the last section near the clear connector in with your fingers. Set the wheel down on a hard, flat surface and apply pressure all the way around the wheel to secure the track in place. 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