BoatTector Bungee Dock Lines secure your boat to the dock and eliminate the jerking and tugging on your boat caused by non-bungee lines. Encased deep within the rope, the BoatTector Bungee stretches as your boat drifts from the dock and gently pulls it back when it gets too far away, leading your boat to a smoother rest while docked. The Dock Line holds a 10″ loop and slider at each end to create an easy attachment to both your boat and the dock. BoatTector Bungee Dock Lines are intended only for temporary use in calm conditions, not for overnight or unattended docking.