Frost King Indoor Window Shrink Insulation Kit, 42-in x 62-in, 4-pc

The Frost King Indoor Window Shrink Insulation Kit helps you keep your home warm by insulating windows and reducing heat loss during colder months. This 4-piece kit includes a clear shrink film that fits windows up to 42 inches by 62 inches. The easy-to-apply film tightens when exposed to heat, creating a secure, draft-free barrier. Designed for indoor use, the film remains virtually invisible while effectively blocking out cold air and preventing heat from escaping, lowering your heating costs.