This 16" Flex pastry bag is made of nylon coated with polyurethane. It's an essential tool for professional bakers. Model #: 3016 Length: 16" Nylon Coated with PolyurethaneDesigned for both food service and home use. Great for piping foods. It's easy to clean, economically priced and won't slip in your hand. Made of print cloth, lined with polyethylene.