Grab the class and get a game going with this system that includes an adjustable net. The net adjusting track is welded to the pole, easily changing the net height from tennis height of 42", to a men's competition volleyball height of 7' 11?". Height adjustment is easy with a single locking knob on each movable net attachment bar. The top net rope is tightened with a worm-gear-style winch with a 2"W nylon strap. Bottom rope and net side tapes can be tensioned with ratcheting style tensioners. This outdoor system is made from durable, 3½" dia galvanized steel posts that are powder coated to eliminate rust and protect against rain. This system can be placed in concrete for permanent use or could also be used in ground sleeves.