Use these heavy-duty lift bags for light salvage, object recovery, construction and scientific applications. Accomplish the same work easier, with more control and for much less expense than with barges or cranes. Underwater construction managers are always finding new uses to slip a hydraulic jackhammer to the bottom, repair a nuclear power plant, repair a pipeline or cable, or in shoreline construction projects; to raise moorings, outboard motors, anchors, pilings, tools and boats.