A galvanized steel post and a lifetime guaranteed backboard makes this basketball system the strongest one for your home playground. It can be extended up to 5 feet and comes with a steel net and a double rim. * These units are built to withstand the extra-heavy use of your playground. The goal and post bolt together, forming a single solid unit. Lifetime guaranteed silver aluminum or white powder coated backboard with White Powder Coated Backboard. System With 5" Extension And Steel Net. Units include : One-piece, 4.5 in. O.D.. Galvanized steel post with a 4 Feet or 5 Feet backboard extension