For all your home’s sealing and insulation needs, the Frost King Poly Foam Self-Stick Weatherseal is a highly compressible self-stick tape designed for interior use. The polyurethane foam squeezes down to fill even very narrow gaps. Its lightweight foam construction compresses to as little as 10% of its regular size to fill uneven, large and very narrow gaps. For best results, ensure surfaces are completely dry and free of dust, grime or grease. Install while temperatures are roughly between 40&90 degrees Fahrenheit. Helps to save energy and is for indoor use only. Not to be used in places exposed to water. DIMENSIONS: ⅜ in width x ¼ inch thick x 17 ft long.