The dependable Douglas® DTP-37 post is a sturdy design that has been a tennis court staple for decades. These 3” OD posts are comprised of extra-heavy 7-gauge steel. Posts are internally wound and feature a self-locking gear mechanism. Gears are constructed of plated steel and the small gear is case hardened. Gear function is 30:1 to ensure a smooth, easy operation. The sleek gear housing and caps are made of cast aluminum alloy. Posts are finished in forest green baked-on polyester powder coat finish to resist rust and increase durability. Integrated welded steel lacing rods are included for a professional net installation. The side mounted removable handle is chrome plated. Corresponding 3″ round steel ground sleeves are sold separately.