The Frost King V83/3 42” x 62” 1.5mil Heavy Duty Window Insulation Shrink 3 Pak is a high-quality window film designed to provide insulation in any room. Made from durable polyurethane material, this clear film is designed to withstand harsh temperatures and conditions. The 3-pack size ensures that you have an ample supply for multiple windows, making it an ideal choice for maintaining the temperature and privacy of your home or business. Proudly manufactured in the United States by Frost King, this window film is a reliable and effective solution for energy conservation and window insulation needs.