Barton Marine SkyDock Storage System 3 to 1 Reduction Up to 175 LBS 4-Point Lift [41200]SkyDock Storage System 3 to 1 Reduction Up to 175 LBS 4 Point Lift SkyDock is the ultimate roof space storage solution for loads up to 175 lbs (80 KG.) Designed for use in any space with a ceiling height of up to 13' (4 M), the SkyDock works in garages, sheds, barns, and lofts for commercial uses in yards, marinas, yacht clubs, and warehouses. Utilizing a 3: 1 purchase system, It smoothly lifts bulky and awkward objects or loads, out of the way, from