<p>J-Trim provides a finished edge at door and window openings along with other various wallboard intersections. This product does not require any joint compound and can be nailed or slipped on.</p><br /><br /><ul><li>Durable vinyl construction</li> <br /><li>Impact- and corrosion resistant</li> <br /><li>Retains original shape</li> <br /><li>No joint compound required</li></ul>