Hevea's Stellar Ball is made from non-toxic pure natural rubber, ideal for playful puppies and small to medium sized dogs. The ball is flexible, lightweight and ideal for both indoor and outdoor fun. Designed with cut outs and star shapes – it is stretchy enough for treats or other toys to be fitted inside for maximum entertainment. Can be used as a training aid, great for fetch, chewing and teething puppies. The natural rubber is strong, durable and long lasting. It is also non-toxic, free of phthalates, petroleum, PVC and heavy metals.