DescriptionThe small ball is designed for your hamster to run or doing other exercise, to keep your hamster healthy and thin. Made of premium plastic material, safe, durable and wear-resistant, the Hamster Exercise Ball is can be used for a long time.Features-Color:As Shown -Material:PP -Size:12.00X12.00X12.00cm/4.72X4.72X4.72in -Designed for your hamster to run or doing other exercise, to keep your hamster healthy and thin.-The hamster exercise ball has ventilation holes in it to increase air circulation, which is safe.-The hamster exercise ball has a lock design, easy to install, to provide your hamster a safe playing environment.-The practical hamster exercise ball is a perfect gift for your kids or friends who are keeping a hamster.-Made of premium plastic material, durable and wear-resistant, can be used for a long time.