[Heavy‑Duty Load Capacity]Designed for demanding workloads, this small pulley block supports up to 551 lbs, making it suitable for most home, workshop and light industrial applications. [Premium Material]Cable pulley wheel stainless steel is made of high‑quality stainless steel with excellent rust and water resistance, ensuring durability in wet, salty or environments. The robust structure of the single pulley snatch block provides long‑term reliability for lifting, pulling and hanging tasks indoors or outdoors. [Smooth 360° Rotation]The stainless steel pulley adopts a built‑in double‑bearing design with a top ring that freely rotates 360 degrees for smooth cable movement. This flexible structure helps prevent the rope from twisting or knotting under changing load directions. [Optimized Product Size]Each M34 single pulley block features a 0.45 inch slot width,ideal for 0.45 inch steel wire rope, rope or other compatible cables. The finely polished stainless steel greatly reduces friction and wear on the rope, helping prevent fraying, prolong rope life and maintain smooth, quiet operation under frequent use. [Wide Application]This set includes 4 cable pulley wheel stainless steel units, meeting various daily lifting and traction needs. Perfect for outdoor pulley systems, gym equipment, home clotheslines, garage hoists, camping gear, boat rigging and DIY projects,these pulleys offer a versatile solution for pulling, lifting or suspending items securely., Weight: 570.0 pounds, Manufacturer: IJSDNVJNDX