Up to 35% of the heat in your house can leak out of poorly insulated windows. Frost King Shrink Film is the perfect low cost solution to keep drafts and cold out of your house. Easy to install, it takes just minutes to put them over all the windows in your house, Frost King Window Shrink Film will keep the heat in and the cold out all winter long. Crystal clear plastic sheet rinks from wrinkle free an ordinary hand held hair dryer Includes double face tape Installs on metal, painted or varnished wood, or vinyl clad frames For indoor use only Covers one patio door or picture window Can be cut to fit using standard scissors Reduces energy costs by sealing drafty windows Increases your homes energy efficiency Easy to install