Adjustable Height and Sturdy Base | Adjustable height design makes it easy for every little animal to start running happily. This silent wheel also comes with a cage attachment to free up floor space when there isnt enough room. You have theflexibility to use the base or accessories anywhereSIZE | This candy-colored large wheel is designed for hamsters, gerbils, mice, rats and other similar small animals. Size: 8 (20cm) diameter so they dont launch in the air when they want to stopIdeal Accessory | This candy wheel with stand and cage attachment is a 1:1 reproduction of the color of the candy, so cute. The super cute pinwheel look will make your beloved pet feel like they are in a fairy tale worldTechnology Integration | A must-have for toys, this dwarf and Syrian wheel has a high-tech rational design - four slits enhance ventilation, which means a steady stream of wind can keep your running and moving. help them cool downUltra-quiet design | Using Japanese high-quality bearings, even if the large and small wheels rotate at high speed, it can ensure quiet at night without shaking Whats more, the raised grooves ensure friction for pets as they run, allowing themto turn the wheels with easeColor Name: Blueberry BlueHamsters can run 20 kilometers a night in the wild, and they can run very fast. To unleash the hamsters energy, we introduced the running wheel.