Lifetime"s Tetherball System is engineered with heavy-duty construction for high-performance play and a soft-surface ball for safety. Our Tetherball System features a weather- and rust-resistant steel pole and with a portable base constructed of high-density polyethylene (HDPE) that won"t crack, chip, or peel. Built to last, our tetherball system will entertain the whole family for years to come. Lifetime brings another childhood game home with the Lifetime Tetherball System. Gone are the days of playing Tetherball exclusively in the schoolyard. Now the whole family can enjoy professional playground equipment in the safety and convenience of your own yard. Our portable tetherball system provides your family with a lot of fun in a small amount of space. This system is designed with a convenient portable base, just like our portable basketball systems. Just fill the base with sand or water and your tetherball system is ready for spirited play.