Great Dog 3" Bison Tubes, 4 Count Bag (Sourced & Made in USA) Great Dog 3" Bison Tubes come 4 to a package and are a delicious chew alone or filled with plain yogurt and frozen, stuffed with peanut butter or any other favorite food--there's no doubt your dog will love them! These Bison Tubes are 3" long with a circumference of between 8-11 inches and help keep teeth and gums clean Bison Tubes are US sourced from free-range grazing bison, never implanted with synthetic or growth promotants, ideal for dogs with allergies and sensitive stomachs and are a great alternative to rawhide This cartilaginous product is a great source of chondroitin sulfate which may ease stiff joints Slow roasted in a human grade facility with no smokes, soaks, washes, nitrates, colorants, BHA or BHT added