Quiet & clean wheels! Marukan Clean Wheels 15 targets for Hamsters General Features: A quiet spinning wheel that uses a newly designed resin axle. Unlike metal bearing types, the axle does not rust, so it can be washed and hygienic. The comfortable running surface makes it easy to run, and it is designed to prevent it from popping out. The wheel stand is clear, so you can observe the running figure from anywhere. Quantity: 1 piece Size (approximate): Width 5.9 x Depth 3.7 x Height 7.9 inches (150 x 95 x 200 mm) (Wheel Diameter 5.9 inches (15 cm)) Material: Wheel/Stand: PS Stopper: ABS Suction Cup: PVC; Country of Origin: China