Description This item is a hamster running ball. Made of plastic,no-toxic and harmless. Encourage healthy exercise in a secure and safe way. Relieves boredom and increases activity level and giving your pet a fun spot to play. For hamsters, gerbils, or other small animals. Features - Color: As shown.- Material: Plastic, Metal.- Size: Approx. 13.5cm in diameter.- Made of plasticand metal, no-toxic and harmless.- Encourage healthy exercise in a secure and safe way.- For hamsters, gerbils, or other small animals.- Relieves boredom and increases activity level and giving your pet a fun spot to play.- You can put pet into the running ball, let it play freely, and provide interactive fun for pets and pet owners.- 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!Packing list: 1 x Running Ball