Great Dog Biggest Bison Bone 5-7" (Sourced & Made in USA) Great Dog Bison Biggest Bones are sourced from free range grazing Bison raised on small family farms in the Midwest and have lots of marrow, meat and fat tailings left on to provide extreme flavor, gnawing and chewing enjoyment Lots of marrow and fat tailings provide long lasting gnawing and chewing enjoyment! Bison Biggest Bones are a great alternative for dogs with beef allergies and other food sensitivities Great Dog Bison Biggest Bones are slow roasted in a State 2 certified human grade plant No smokes, soaks, washes, nitrates, colorants, BHA or BHT added