【High Quality Materials】The hamster exercise wheels are made of high quality plastic. to protect health pets, can be used for a long time. 【Transparent Running Wheel】Transparent design makes you clearly visible when training the hamster, you can watch your every move animal, which is interesting. 【Funny Sports Toy】Exercise ball for hamster which can keep pets nimble and nimble. Relieves boredom and increases activity, and gives your pet a fun place to play. 【Unique Design】 A great toy ball for hamsters. The hollow design on both sides of the wheel makes the dwarf hamster ball more breathable and allows hamsters to do aerobic exercise. 【Gift for Pet】The mini pet pet making exercise ball can be a great gift for your little pet. Pet ball toys are perfect for gerbils, hamsters, mice or other small animals and provide a place to play and exercise.