Run disc: made of material, the exercise wheel is and comfortable,chinchilla wheel
Hamster flying saucer wheel: suitable for hamster, pet rats and other small animals,pet running wheel
Exercise wheel: small and exercise wheel for pets to train their toes and nails,pet flying saucer wheel
Non run disc: standing, encourage healthy exercise,hamster running wheel
Warm tip: dear buyer, due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! thank you!,hamster wheel,hamster jogging wheel
