The T&T 10-1/2" Institutional Quality Tetherball Set is sturdy enough for recreation centers, clubs and your own backyard play! * Pole Features: 3 fitted pieces of 1-1/2" diameter galvanized steel * Ground Sleeve: 18" long (to anchor under the ground) * Tetherball: Nylon wound ball with internally connected cord, Inflation pump and easy set up instruction are included