Product details: Safe working load: 77 lb (35KG). High-Quality Material: The lifting pulley is made of 304 stainless steel, featuring a smooth surface, lightweight design, strength, corrosion resistance, and durability. Suitable for industrial lifting, transportation, suspension work, or everyday uses such as clotheslines, tents, and fishing boats. Excellent Design: This 304 stainless steel pulley includes a bearing structure and a 360-degree rotation design, allowing ropes, cables, belts, or chains to run smoothly in the groove. It changes the direction of force and provides mechanical advantage in linear or rotational systems, making lifting heavy objects easier. Ideal for various applications. Instructions for use: This 304 stainless steel pulley is designed for rope traction and features a 360-degree rotation function. Rotating the pulley helps change the direction of force and prevents rope entanglement, ensuring smooth operation. The pulley assembly allows adjustment of required force, facilitating the lifting or moving of heavy objects. Color: As shown Material: Stainless steel Package Contents: 5 x M20 pulley blocks 2 x M15 pulley blocks 5 x M15 pulley blocks Only the items listed above are included; other products are not included. Note: Lighting and display differences may cause slight variations in color. Measurement error is +/- 1-3 cm.