1Made of high quality rubber, soft and elastic, non-toxic, environmental-friendly. 2Helps to relive boredom and stress, avoid unwanted biting upon furniture. 3Helps to clean tartar on the teeth, prevent tooth decay. 4With this training ball, get your dog moving and make your dog healthier. 5Suitable for dog and other pets.Features: 1.Made of high quality rubber, soft and elastic, non-toxic, environmental-friendly. 2.Helps to relive boredom and stress, avoid unwanted biting upon furniture. 3.Helps to clean tartar on the teeth, prevent tooth decay. 4.With this training ball, get your dog moving and make your dog healthier. 5.Suitable for dog and other pets. Specifications: Material: Rubber Product Size: Large ball: 6.5cm / 2.56in(diameter) Small ball: 5.5cm / 2.17in(diameter) Package List: 2* Dog Training Ball } Note:Please note that the cord color of this product will be sent randomly, please make sure you don't mind before ordering.