FoodSaver 11 x 16 Vacuum Seal Rolls make it possible to create bags that are as long as you need. The convenience of custom-length storage bags means no more wasted material or precarious doesn t-quite-fit scenarios. Constructed of BPA-free multi-ply material that blocks moisture and oxygen these rolls protect their contents from freezer burn and spoilage up to 5x longer than non-vacuum storage methods. And because sealed bags are air-tight and durable they prevent floating during the sous vide water bath for consistent and delicious cooking results.