The M-D Flat-design Aluminum and Vinyl Screw-on Top and Sides Door Seal Kit protects against drafts, moisture, dust and insects. Save on energy by sealing the top and sides of your door and keeping the heat or air conditioning from escaping. This kit comes with three pieces, two 84" pieces for the vertical sides of the door frame, and one 36" piece for the top of the door frame. All of the hardware needed to install is included. Before installation, cut to desired length using a hacksaw and be sure the vinyl bulb is compressed against the door to create a proper seal. Simply screw the three pieces into the door frame.