Silent Spinner Hamster wheel designed with Dual Ball bearings, it brings your little hamster endless running happiness, also brings you a quiet night even if your hamster on the race track to run & hamster wheel is spinning Your furry critter will love this hamster wheel Toy as Hamsters love the hamster rolling wheel like a runner to help them to broken boredom & enrich their nighttime, also keep them to exercise for maintaining their strength and well-being Reasonable Size of Running Drum & Wide Running track brings a relax back feeling, as they do not need to bend their back when running, let them enjoy their endless running time, help them to build own muscle, keep them happy & mental well-being Designed for your pet to get in or out securely & easy to access, Variable height is between 1-inch (ca.