This hamster exercise ball is designed to encourage your pet's natural running instincts. The transparent material offers a clear view of your hamster's movements, ensuring they stay safe while having fun. It's a great way to entertained and engaged, preventing boredom and promoting overall well-being. Features -Color:Assorted Color -Material:Plastic -Size: 10.00X10.00X8.00cm/3.93X3.93X3.14in -Seethrough design: the transparent construction allows you to watch your pet's activities, increasing interaction -Sturdy plastic: built from durable plastic material, providing a exercise solution for small pets -Low noise: silent technology reduces noise, making it suitable for quiet environments and nighttime use -Generous space: designed with ample room for small pets such as hamsters and guinea pigs to move around freely -Convenient cleaning: features an easy to design, ensuring your pet's living area remains Package list: 2 x hamster running ball