Works with Lock & Block Treats, Interactive Treats or Kibble. Dog Tough Rubber. Nubby surface helps clean teeth and gums. Lock & Block Treat (Made in USA) Rice Flour, Vegetable Glycerin, Corn Starch, Water, Natural Chicken Flavor, Calcium Carbonate, Powdered Cellulose, Citric Acid (a preservative) Calories Per Treat Large 210.9 Medium 101.5 Small 38.4"

Ingredients:
Lock & Block Treat (Made in USA) Rice Flour, Vegetable Glycerin, Corn Starch, Water, Natural Chicken Flavor, Calcium Carbonate, Powdered Cellulose, Citric Acid (a preservative)