ABOUT: The BarknBig Beef Bully Stick Bites 1-4" in a 1# Bag is made from USDA inspected bull pizzle. BarknBig's bully sticks are proven to be 180% stronger than our competitors. This premium-quality bully stick will keep your dog entertained for hours on end. This odorless chew is safe for indoor enjoyment. Always monitor your dog with any bone or chew.