We combine sweet potato and fine ground oyster shells, for a unique, fully digestible dental treat. The oyster shell has abrasive qualities that help remove teeth plaque and tartar, and the sweet potato delivers a tasty treat your dog will love! Every dental stick offers your canine an assortment of vitamins and minerals found in sweet potato, oyster shell, dried citrus pulp, and coconut oil. Plaque Busters are a natural dental treat that is made with high quality ingredients and packed with flavour, a win-win for everyone. Package of 8.