Features LABOR SAVING SUSPENSION: You will receive 2 M50 double pulley blocks, perfect for hanging heavy loads to reduce load and save effort 400KG LOAD: The maximum load capacity of each pulley is 400kg, suitable for rope, cable and wire with diameter up to 12mm WEAR RESISTANT MATERIAL: Rotary block is made of reliable 304 stainless steel, durable, rust resistant, wear resistant, corrosion resistant, suitable for use with ropes in both indoor and outdoor applications ROTARY DESIGN: The block wheel is designed with a swivel ring at the top to rotate 360 degrees. The smooth rolling roller provides excellent line traverse without quivering or rope knotting or clogging WIDE APPLICATION: Traction lift pulleys are widely used in rope or other tool suspension traction applications such as rope lifting, tent tightening, DIY home projects, dog pulley systems, object handling, clotheslines, machine loading, cranes, industria Specification: Item Type: Lifting Double Pulley Block Material: Stainless steel Single Load Bearing: 400 kg / 881.8 lb(approx.) Specification: M50 Type: U type Package List:2 x Lifting Double Pulley Block Package List 2 x Lifting Double Pulley Block