SportsStuff Booster Ball Custom Towing System: * A custom tow rope with an inflatable buoy in the middle that will boost your towable"s performance in many ways * Keeps the tow rope out of the water, enhancing your towable"s performance, reducing drag, rope spray, submarining, stress on the tube and preventing rope spray * For use with 1-4 rider towables * 60" long * Ball dimensions: 38" x 28" inflated