Feature:1. LABOR SAVING SUSPENSION: You will receive 2pcs M15 double pulley blocks, perfect for hanging heavy loads to reduce load and save effort2. 35KG LOAD: The maximum load capacity of each pulley is 35kg, suitable for rope, cable and wire with diameter whthin 5mm3. WEAR RESISTANT STAINLESS STEEL: 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 applications4. ROTATABLE 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 clogging5. WIDE APPLICABLE: 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, industrial lifting and other fieldsSpecification:Item Type: Lifting Double Pulley BlockMaterial: Stainless steelSingle Load Bearing: 35 kg / 77.2 lb(approx.)Specification: M15Type: U type.Package List:2 x Lifting Double Pulley Block