FoodSaver� FSFSBF0526-000 2-Pack 8" x 20" Bag MaterialFoodSaver® 8 Inch Rolls let you create custom-sized bags to package and protect food and non-food items using your FoodSaver® Vacuum Sealing System. Made from the exact same material as our bags, FoodSaver® Rolls give you great flexibility. Simply cut a piece to your desired length, seal one end, fill, and then vacuum seal. Channels allow complete air removal and multi-ply construction blocks moisture and oxygen and makes the bags strong enough to simmer and microwave.