Barkworthies cow tails (6 oz.) are all-natural, crunchy-chewy chews suitable for all stages of life. These highly palatable, high protein chews have a unique texture and shape that helps “brush away” built-up plaque and tartar, promoting oral health and helping prevent bad doggy breath. our Cow tails are 100% digestible chews produced from free-range grass-fed cattle. Please note that this product is not for human consumption. Please supervise your pet while giving a treat or chew. as With all of our products, Barkworthies cow tails are additive-free, chemical-free and preservative-free. Moreover, most Barkworthies products are single-ingredient chews, which means they’re 100% healthy and safe.