The Collagen Sausage Casings are a processed alternative to Natural Sausage Casings they are produced from naturally occurring Collagen which is extracted and refined from cow hides.  Collagen Sausage Casings offer exceptional consistency in shape and size and do not require much preparation before use. Collagen Sausage Casings are great choice for starting your journey making sausages for the first time due to being easy to use and requiring no preparation before use.