List 3 cargo-handling aids and their uses.

1. wedge point bars: -used to shift heavy cases into position over short distances with grease or used to pry a case to get rollers underneath for longer distances 2. rollers: -move cargo from the wings and ends of a hatch to the square of the hatch; pallet dollies, single rollers, or gravity conveyors 3. tag lines: -controls the swing of the draft as it is being hoisted or lowered