【EXCELLENT MATERIAL】 The exercise ball is made of transparent non-toxic and shatterproof plastic and is well ventilated to ensure continuous air circulation. Provides interactive entertainment for pet and pets. Color: Blue. 【TRANSPARENT DESIGN】 Its transparent design will make you see clearly while the hamster is exercising, and you can play with your pet to increase the fun. 【EASY TO INSTALL】 The ball is easy to install and a good toy for the hamster to entertain. Hamster Ball yes a safe and secure way for your pet to explore and exercise. Suitable for hamsters , gerbils or other small animals. The hamster is a small animal who is very fond of sports, if kept in a cage for a long time it is very bad for its health, so increasing the toys can provide the required amount of exercise. beneficial for muscle stretching of the animal. and cardio-mechanical functions, which can greatly extend its lifespan. 【CLEANING IS EASY】 Just use warm water and mild detergent, then rinse well. Provided