Color:Pink PanDaDa Hamster Running Ball Small Animals Exercise Wheels Ball Pet Play Exercise Jogging Ball Specification: Type: Hamster Running Ball Color: Blue, Pink, Yellow Material: Plastic Diameter: 10cm/3.93" Features: 100% brand new and high quality. Made of high quality plastic material, non-toxic and durable to use. Easy to open, turn counterclockwise, and the ball would be open. 3 colorsto choose, transparent shell is convenient to watch the activities of your pets. Only suitable for small animals, please make sure your pets is small to fit in the ball. Give your small animals much pleasure for several hours, make them happy all the time. And exercise can help them keep in good health. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2cm measuring deviation due to manual measurement.