Deluxe Rotor Spin Ball You'll love this unique tetherball tennis game! Fill base with water to hold the pole steady, then insert game poles and you're ready to play on any surface. For two-person play, use the 16" plastic tennis rackets to hit the tethered tennis ball back and forth, or bat the ball around the pole for one person or practice play. Includes base, 71" tall post, tether cord, 2 tennis rackets, tennis ball with cord, and hardware.