Features: 1. Made of food grade environmentally friendly tpr material which is non- toxic, safe and healthy. 2. Keep your dog mentally stimulated, physically active and help grind teeth, and promote oral health. 3. Concave- convex look design, work great on cleaning dog' s teeth, round arc design more easy for dog to pick up. 4. Built in sounder, arouse dog' s play instinct. Great for dog chewing and playing. 5. Release the dog' s stress, enhance the relationship between you and your pet. Specification: Condition: 100% Brand New Material: TPR Color: As Pictures Shown Diameter: approx. 7. 5cm/ 3. 0in Package Including Package list: 1 x Orange Ball Toy 1 x Blue Ball Toy 1 x Green Ball Toy