Simply snap the 5 plastic leg floats onto your Spikeball set for games of Spikeball in the pool, lake, or ocean. Teams of 2 have 3 hits to spike the ball into the net and the first to 21 wins! Fill the anchor bag with a 3-4 lb blunt object, allowing it to sink beneath the game to keep it in place. Spikeboy can be used at any water depth, although shallower water creates faster paced game play with more running and dives. The anchor bag doubles as a carrying case. Available as a complete set or attachment set. Replacement balls sold separately.