American Bison Cured Small or Split Meaty Knuckle Bone - Made in USA Natural American Bison Sm/Split Meaty Knuckle Bone (Not water buffalo). Cured at low temperatures, not baked to a crisp. We leave some moisture in the bones to keep them from becoming too brittle. Cured without Smoke or flavorings, just slow cured in their own natural juices. Made & Sourced in the USA from Free Range American Buffalo (Bison) raised without added hormones or antibiotics. Medium - for Medium Sized Dogs Great alternative for dogs with allergies to beef or pork.