5-9/16” O.D. Gooseneck Post with 6’ Extension, Limited Lifetime Warranty. Posts are formed from heavy wall galvanized steel for superior protection against weather elements. Each post is approximately 13’ tall, with 3’ to be installed in a 4’ x 2’ concrete footing to ensure long-lasting post stability. All posts contain a backboard mounting plate welded to post end for hassle-free attachment to most backboards. 5 9/16” and are comprised of Schedule 40 steel, providing unmatched strength and durability to the units. Optional custom outdoor weather resistant pole pads are available. Standard in-ground installation (direct bury).