Frost King 3/4" X 5/16" X 10' Black Rubber Foam Weatherseal Tape Weatherstrip is a double-sided rubber seal designed for interior and exterior use. It is made of polyurethane and has a density of 4.0. The product measures 0.4375 inches in height, 0.75 inches in depth, and 34 inches in width. It comes in a unit of feet and has an unspooled length of 10 feet. This weatherstrip tape is ideal for sealing gaps around windows and doors, preventing drafts and reducing energy costs.