Product introduction: This training ball is the best choice for communicating with your beloved dog indoors. Made of natural rubber with high density foam that has excellent elasticity and does not hurt your teeth. The lightweight finish allows you to safely play indoors while utilizing the properties of rubber. Raw Materials/Composition: Natural rubber with high density foam, Caution (disclaimer): Please read the product that has been broken as soon as possible to swallow. Also, please make sure to play where people see it. Continue