Good Buddy Meaty Center Bone Dog Treats, 5 Ounce (Pack of 6) High quality beef femur bone dipped in natural liquid smoke and baked for hours of chewing fun Strict guidelines ensure a moist, quality bone that reduces the chance of splintering Liquid smoke is created by burning wood in barrels and condensing the smoke in order to penetrate the bone Liquid smoke penetrates the bone with extra flavor, is an antioxidant, and fights off bacteria Product of the USA