Fight nasty doggy breath with Z-Ridge edible dental chew bones. Z-Ridge bones have an exclusive ridged surface to scrape and polish your dog's teeth while he chews. Naturally powerful chlorophyll, found in the dark specks and streaks of alfalfa concentrate, freshens breath and body from the inside during digestion. Z-Ridge bones are more than just a healthy daily treat. They're designed for a lasting chew session — 10 minutes or longer, depending on the dog. Potato starch, vegetable glycerin, cellulose fiber, alfalfa concentrate (source of chlorophyll, natural flavor, whey, lecithin, vanilla extract, clove powder, nutmeg powder, fennel seed powder, parsley.