Designed to lift heavy rescue loads under demanding conditions, this double 3 pulley with integrated cam prevents accidental lowering and possible shock-loading of the rescue system. With the cam in the disengaged position, the Rescue Hauler functions as a double pulley. With cam engaged, the rope can travel in only one direction. Use the Rescue Hauler with the matching double 3 pulley to create a 4:1 mechanical advantage. Both products are anodized aluminum, red in color with one black sideplate. MBS 12,000lbf (53.4kN).