Barkworthies Beef Trachea offers a 100% digestible, sturdy all-natural dog chew with fat trimmings left on to make it both enticing and delicious! A healthy alternative to a traditional rawhide chew, Barkworthies Beef Trachea is FDA approved and produced from free-range, grass-fed cattle. As with all of their products, Barkworthies are additive-free, chemical-free, and preservative-free.