We meant it when we said PLAY ANYWHERE. Attach Spikebuoy to your Pro or Standard Spikeball set, fill the anchor bag, and you're ready to play in the ocean, lake, pool or that giant bathtub from Scarface. You can always find people to play with by downloading the free Spikeball app, which helps you connect with nearby players and pick-up games. Each Spikebuoy includes five leg floats and straps, and an anchor/carrying bag. Set not included.