eMylo Driving Fitness Boat M50 Stainless Steel 304 Single Pulley Hanging Wire Towing Wheel Material: stainless steel 304 Eye Dia: 20mm Maximum loading capacity can reach 400kg Anti-rust and more durable,Dragging Pulley, Lifting Pulley eMylo(TM) is our registered trademark, pls don't follow-sell,othersise you will be held liable.