Furry friends will have a blast with the exciting Atomic Ball Chew Toy. It's a new twist to the traditional ball and features a fun wooden surprise inside. It's made with all natural wood and safe food grade coloring. Chew toys help small pets overcome cage boredom and promote good dental health. Ideal for Rabbits, Guinea Pigs, Pet Rats, Chinchillas, Hamsters, Gerbils, and other small animals. Measures 4" Diameter.