Dock Edge Economy Mooring Whips 2PC 12ft 4000 LBS up to 23 ft [DE3120F]Mooring Whips The practical alternative to marine railways, davits and lifts, these fiberglass Mooring Whips are exceptionally strong, attractive and do not obstruct your waterfront view. Each Whip mounts with a durable cast aluminum base with built in cleat. These quality Mooring Whips act as a spring to maintain your boat at a safe convenient distance away from your dock to prevent impacts caused by waves or the wakes of other passing watercraft.