Product weight 255g, outer diameter 13cm, inner diameter 6cm, thickness 3.5cm Features: 1. Rubber material, solid filling, not easy to bite 2. The ring structure is convenient for medium and large dogs to bite 3. The dense bump design can not only grind the teeth, but also clean the teeth, and also play the role of massaging the teeth 4. Suitable for dogs to play indoors and outdoors 5. Easy to clean