Park & Sun Sports Permanent Outdoor Tetherball Set with Accessories Steel 3-piece galvanized steel poles measure 1-1/2" in diameter; Push-button pole locking system allows for quick and easy setup Galvanized steel provides exceptional stability and resists rusting; When assembled, the tetherball set stands 10' 6" in height Soft Touch tetherball that features a nylon-wound bladder, an inset valve stem and an internal steel swivel hook attachment which secures the ball to the cord Durable and soft synthetic material of the padded tetherball cover lessens the impact to hands, wrists, and arms when hit Includes a 12" in-ground pole sleeve, a heavy-duty nylon cord which measures 7' in length and 6 mm in diameter, and a compact hand pump with 2 inflation needles