Nap-Lam I Roll Film, 1.5 Mil, 25" X 500 Ft, Gloss Clear, 2/box NAP I laminating thermal roll film. For use with heated roller and heat shoe laminators. 1" poly-in core. Load film into your laminator using patented, lightweight AutoGrip shafts or traditional steel shafts, which utilize thumb screws and core chucks.