Poly Nylon Pan Liners are made from a tough 1 mil Polyethylene and Nylon material that provides a level of protection that can't be matched. Poly Pan Liners make clean up a breeze and save labor costs because they protect oven baking and roasting pans, steam table serving pans, cooking pots, baking sheets and more from cooked-on residue that can requires endless scrubbing. In addition to the savings in labor costs, there's also savings to be realized from reduced wear and tear on pricey pans and equipment. The liner bags are designed to withstand temperatures from -70°F to 400°F, so they can be used for short term food storage as well. Meets FDA standards. Sold in full cases only.