These Outdoor Essentials® 5 in. x 5 in. x 8 ft. Lakewood Open Picket Top Line Posts were designed specifically to work with Pro Series 6x8 Lakewood Open Picket Top Panels. Posts have routed holes located on opposing sides, perfect for connecting fence sections in a straight run. The rails from the fence slide into the routed holes in these posts and lock into place for an easy, fastener-free post-to-rail connection. Outdoor Essentials posts are made of the same durable vinyl as their fence panels and gates. These posts are structural and do not need to be sleeved over a 4x4 wood post during installation.