This Plastic Window Insulation Film is a great window draft stopper for sealing those small leaks around windows that can add up to big savings on your energy bill this winter. This window insulation kit includes two 36 in x 72 in sheets of film to easily cover windows and includes 2 mil clear plastic sheet, 18Ft of water resistant molding and 35 Nails which is safe for use on vinyl, aluminum, or wood that has been painted, finished, or varnished.