The 4ft bungee cord mooring line can easily install and uninstall your kayaks, motorboats, boats, yachts and other small ocean cruising equipment on a dock. The hidden bungee cord inside like a shock absorber that can "stretch" when your boat, pontoon, personal watercraft, jet ski or kayak drifts from choppy waters or wind. SPECIFICATION: Diameter: 16mm / 5/8 inch Unstretched Length: Approx. 124cm / 4ft Stretched Length: Approx. 170cm / 5.5 ft Tensile strength: 2200lb Color: yellow Material: fiberglass Package Contents: 8 x Golf Alignment Sticks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.