Nylabone healthy edibles are fully digestible treats. Low in calories and free of added sugar, salt, plastics, and artificial colors. Help to fight plaque and tartar buildup as dog chews. Duck flavored bones have essential omega fatty acids and a delectable duck taste. Ingredients are wheat starch, glycerin, cellulose, lecithin, potato starch, duck flavor, natural flavor, oat fiber, calcium carbonate, soy flour, rosemary oil, omega 3 fatty acid and omega 6 fatty acid. Available in petite size; pack of 2. Each measures 3-3/4-inch in length.