The M-D Aluminum and Thermoplastic Rubber Commercial Screw-on Door Sweep features a thermoplastic rubber seal for protection from drafts, moisture, dust and insects. The rubber seal has higher durability and sealing properties than standard vinyl. It is UL Rated for slower flammability to limit the spread of fire in a building. Save on energy by sealing the bottom of the door and keeping the heat or air conditioning from escaping. All of the hardware needed to install is included. Before installation, cut to desired length by using a hacksaw.