Silent Spinner Hamster Gerbil Small Pet Exercise Wheel Quiet Wheel. Easy to clean plastic. Low noise - whilst you're watching television & won't keep the whole house awake at night. Good exercise for your small animal. Great boredom buster. Install the silent spinner 2 ways: 1. Use the wheel on its stand and place free standing in the pets cage or 2. Detach the wheel from its stand and attached the wheel to the side of the cage using, secure in place. Size 12cm, 14cm or 17cm