Name: Hamster running wheelDimensions: 21 cmFeatures: silent, dual bearingsColor: white, blue, pinkApplicable pets: in-laws, hamsters, golden bears, etc.When you are busy with work and do not have time to take care of your pet, you need to prepare a toy for your pet to play with.This is a silent pet running wheel, even if you are at home, it will not disturb you.super quiet, no noise when running at night, will not interfere with your rest.Transparent track on the side, you can clearly see the pets playing.Can be installed in a cage to give pets an interesting playmate.Package Contents:1 xHamster running wheelNote:1. Please Allow 1-3cm Differs Due To Manual Measurement.2. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.Please refer to the received product. Thank you for your understanding.Due to shooting lighting and the difference of each monitor. There will be different degrees of color difference. The actual product shall prevail.