Bungee Dock Lines (4 ft, 5 ft and 6 ft) AIRHEAD Bungee Dock Lines absorb shock to boats, cleats, docks, pylons and other hardware. The bungee cord is hidden inside the rope and acts as a built-in snubber. Two foam floats protect the boat from chafing. There's a 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. Black/Blue/Red color scheme. AHDL-4: 4ft., stretches to 5 1/2 ft.