Designed for baking professionals for heavy duty, extended use, this Ateco 3420 Wunderbag 20" polyurethane coated cotton reusable pastry bag is perfect for creating imaginative cupcakes, cakes, and food displays! Made of .008" thick cotton, coated with polyurethane, this pastry bag is easy to grip, and a leak-proof option for piping icing, mashed potatoes, and dough. Plus, thanks to its smooth interior lining, this bag is ideal for use with fatty or oily products as well as regular icing. The coated cotton construction is easier to clean than canvas bags, and the heavy weight of the cotton makes it great for use with hot or cold contents. The microwave-safe construction simplifies food prep, and makes it easy to heat up icings or mashed potatoes before piping. With a reinforced tip, this bag is durable and designed to last through many uses. When the bag has been cleaned and is no longer needed, it features a loop to hang it for easy storage. Whether you're using it at a commercial bakery or a catered event, this pastry bag is a reusable option to help you lessen your environmental impact. Bringing you innovation and quality for over 100 years, Ateco, an August Thomsen brand, has been internationally known in the industry for creating baking tools of superior craftsmanship and design. By continually improving on tools, materials, and packaging, Ateco is dedicated to providing professional bakers with the kitchen essentials they need to succeed in an ever-evolving industry!