The Bungee Dock Lines absorb shock to boats, cleats, docks, pylons, and other hardware The bungee cord is hidden inside the rope, where it acts as a built-in snubber Two foam floats protect the boat from chafing and sliding adjustment at both ends for quick docking Recommended for docking boats and PWC's up to 3,500 pounds. Tensile strength is 2,150 pounds 4-feet in length, stretches to 5 1/2-feet