Happy Fitness: The 6.9 Inch (About 17.5 Cm) Hamster Wheel Brings A Healthy Lifestyle Your Little Hamsters Endless Happy Races, Hamsters Love The Wheel That Spins Silently, Helping Them To Enrich Their Night While Maintaining Their Strength To Continue To Exercise.Hidden Silent Bearing; : Rolling Innovative Ball Bearings, Silent Rotation. Make Sure The Silent Hamster Wheel Spinner Glides Smoothly And Quietly. The Hamster Wheels Are Quiet, With No Annoying Squeaks Or Rubbing Or Center Axle Noises. Even When The Hamsters Are On The Track, The Track And Hamster Wheels Spin For Quiet Nights.Dual Use Of Stand And Cage: Hamster Wheel With Stand, Freestanding Or Attached Directly To Any Wire Cage, The Hamster Ferris Wheel Is Easy To Handle. To Install. Hamster Dish Reasonably Sized Running Drum And Wide Running Track Provide A Relaxed Back Feeling, No Need To Bend Over While Running, Allowing Them To Enjoy Endless Running Time.Safe - Strong And Durable: The Gerbil Wheel Is Made Of High Quality Material, Chewy, Beautiful And Delicate. Sturdy Rat Wheel Design For Reliable Position And Support While Running Or Walking. Hamster Wheels Are Best Suited For Hamsters, Gerbils, Hedgehogs Or Other Small Animals. Easy To Clean: The Hedgehog Wheel Features A Fully Open Design For Easy Deep Cleaning.