FoodSaver Gallon Vacuum Zipper Bags feature an expandable bottom for easy filling, and are ideal for use with your FreshSaver Handheld & MealSaver vacuum sealing systems. The bags are great for deli meats, cheeses, leftovers and other refrigerated foods that you access daily. Preserve and protect with FoodSaver bags designed with channels that allow complete air removal. Multi-ply construction blocks moisture and oxygen and makes the bags strong enough to simmer and microwave. Features: - Stand-up expandable bottom for easy filling - Reinforced Double Zipper ensures an airtight seal - Unique multi-layer design maximizes air removal - Keeps Food Fresh in the Refrigerator Longer Included: - 12 FoodSaver Vacuum Zipper Gallon Size Bags - The FoodSaver Vacuum Zipper Bag Adapter is required for use with full-size, heat seal FoodSaver(R) Vacuum Seal appliances. (Found in the accessories section).