Great Dog's Bison Tendon Chews are freeze-dried to perfection, sourced from free-range American grazing bison and loved by all dogs Highly coveted and our number one seller, Bison Tendon Chews last a good long time and are ideally suited for dogs under 55 pounds--if you have a dog under 40 pounds you might also want to try Great Dog Bison Tendolinis These 3-5 inch segments are freeze-dried in a human-grade facility without additives Great Dog Bison Tendon Chews are a much safer alternative to rawhide chews Great Dog's Bison Tendon Chews are freeze-dried to perfection, sourced from free-range American grazing bison and never implanted with synthetic or growth promotants. Highly coveted and our number one seller, Bison Tendon Chews last a good long time and are ideally suited for dogs under 55 pounds--if you have a dog under 40 pounds you might also want to try Great Dog Bison Tendolinis. These 3-5 inch segments are freeze-dried in a human-grade facility. Great Dog Bison Tendon Chews are a much safer alternative to rawhide chews. No smokes, soaks, washes, nitrates, sorbates, BHA or BHT added.