All Roofmaster hoisting wheels feature the highest quality die-cast aluminum wheels. These wheels are made in the U.S.A. Incorporate that with maintenance-free bearings, plus an all-steel framework. Traditional gin wheel has an extra-heavy-duty forged swivel hook with safety clip. You can tap the wheel and it has a ring, not like imported or yellow imitation "sand casted" wheels that will break if dropped. Light weight for greater ease and safety when mounting to an A-Frame. Use with 3/4" rope only.