Add extra zing, excitement and comfort to your tubing! Attach AIRHEAD's Bungee Tube Rope Extension between your boat's tow point and the tube tow rope. You'll enjoy brief surges of speed as the bungee stretches and contracts. It reduces wear and tear on tubes and riders too, by absorbing sudden jerks from slack in the line. This 16 strand, 9/16 inch x 3 foot polypropylene rope stretches to 5 feet. The 4,150 pound tensile strength is perfect for up to 4 rider tubes.