All puppies go through the process of growing new teeth; and while teething, puppies have a strong urge to chew. Deter destructive chewing with N-Bone Puppy Teething Rings. Its unique shape and pliable texture make it an ideal teething aid to alleviate discomfort by massaging gums while your puppy enjoys this delicious treat. All Natural Gentle and safe for immature teeth Added DHA and calcium No wheat, corn, or soy added N-Bone Puppy Teething Rings are edible and safe to digest, gentle and safe for delicate teeth, and provide a safe outlet for strong chewing urges.