The Frost King 42" X 62" Window Insulation Kit Shrink Film is a clear plastic window film with a frosted pattern, designed for both indoor and outdoor use. It comes in a pack size of 3 units, each cut to fit any room in the United States. The translucent window film offers traditional style and effectively insulates windows to help maintain room temperature. Perfect for adding a decorative touch while also providing energy efficiency to your home or space.