The Barkworthies- Lamb Leg Bone are from Australian lambs are great for dogs with allergies or sensitive stomachs. They are 100% all natural and are the shank bone of the lamb. They come with the tendon on and still have some of the meat on the bone for a very tempting, meaty flavor. Australia is known for high quality meat products and rare cases of disease. No permit necessary to import, and the purest of lamb product make this a safe and great all-natural dog treat.