This storm door bottom seal sweep is constructed of gray vinyl construction. It measures 37 inch length x 9/16 inch height and is used as a bottom seal on storm doors to help prevent air infiltration. It features a T-style design which allows for easy installation. For best results, follow the installation instructions included with each package. These parts are easy to replace using only a few simple tools. Please refer to the line art drawing and compare with your original item before purchasing. INSTALLATION TIP: Soak in hot water to help relax the material so it can be installed easier and the material will reshape to its original form before being compressed in the packaging.