Verus Sports Portable Tetherball Set A portable tetherball system that is easy to assemble and store, with durable construction providing safe play for kids and enough strength for more intense players. Includes a round, 30 base constructed of heavy duty plastic, a 1  powder coated metal center pole, an 8 soft side machine sewn ball and pump, a nylon braided rope with metal connector, and 3 metal stakes to enable aggressive play on grass or dirt. The base, which is fillable with sand or water for stability, contains grooves underneath for easy storage of the center pole. It rolls easily from the driveway to the yard. Assembled pole is 9 high and the rope may be adjusted to accommodate different levels of play. Designed for outdoor use; weather and rust resistant. Assembly instructions and game rules included. Backed by a 90-day warranty against manufacturer defects.