Dog Toy -Small Animal Running Exercise Ball For Pink Hamster Crystal Ball Highlights Generic Brand Small Animal Running Exercise Ball For Pink Hamster Crystal Ball Description: This is a great area temporary storage to keep your furry friend in while you clean their house. Made of plastic material, effectively preventing biting. The round design makes it more stable and safer. Bright and clear, you can observe the activities of hamsters or other small animals at any time. Ventilation holes and double layer design are helpful to improve air circulation. With this exercise ball, your small pets will no longer be limited to the small cage, they can increase their physical activity space effectively. For hamster, dwarf rat, small-bodied bear cub or other small animals. Specification: Material: Plastic Ball Diameter: Approx. 12cm / 4.72 inch Package includes: 1 running ball Note: Please allow 1-3cm difference due to manual measurement and 3-5g for difference between different colors. Due to the screen difference, the color may be slightly different from what you expect, please kindly allow.