Ideal for making snack-size sausages, the LEM 19 mm Edible Collagen Casings 2-Pack are made from beef protein and can hold up to an approximate stuffed weight of 14 lbs. of fresh or smoked sausage in each casing. Uniform in size for easy stuffing. LEM 19 mm Edible Collagen Casings 2-Pack - Food Processing at Academy Sports