FoodSaver zer Bags, 13-Pack are made from a unique 3-ply FDA- material designed to keep your food fresh and protected. Featuring an outer nylon layer for added strength, these bags provide a reliable moisture and oxygen barrier that helps prevent zer burn. These heavy-duty bags are versatile and can be safely used in the microwave, boiled, frozen, and even cleaned in the dishwasher. They are reusable and come with a resealable closure to maintain freshness and convenience. for storing a variety of foods, these zer bags combine durability with practicality for everyday use. Model Number: FSFSBF0316-NPR