Shield N Seal's All Black Vacuum Sealer Rolls lock out air and moisture to reduce freezer burn, preserve flavors and aromas, and protect food from up to 5x longer - or even 10x longer - than traditional storing methods. Made of BPA-free, food-grade materials, these rolls provide unparalleled safety for cooking, boiling, and sous vide recipes. Additionally, the completely light- and odor-proof black plastic ensures privacy and product potency, so you can store herbs, medicines, coffee, and tea with confidence. Their honeycomb channel system allows for compatibility with most 11" or wider sealers, and you can even reuse the rolls after trimming off the rough edge. Enjoy the satisfaction of knowing that Shield N Seal vacuum sealer rolls will keep your foodstuff fresher for longer, and save you money in the process!