FoodSaver 8 and 11 Heat-Seal 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 and multi-layer construction blocks moisture and oxygen and makes the bags strong enough to simmer and microwave. BPA-free. Multi-pack contains 3 count 11 x 16 rolls and 2 count 8 x 20 rolls Multi-ply material prevents freezer burn Specially designed channels block oxygen and moisture to maximize air removal BPA-free Simmer and microwave-safe