construction: 304 solid stainless steel pulley for enduring use and rust resistance with a strong, durable structure. 360degree rotation: the rotating head can turn a full 360 degrees to align with rope or wire direction and help prevent knotting during operation. Smooth, burr surface: specially polished to provide a flat, smooth contact surface for reliable, lowfriction performance in both indoor and outdoor applications. Compact set with load capacity: 10piece set of M50 single pulley blocks. Each pulley measures 130 x 54 mm (5.12 x 2.13 in) and supports a maximum load of 400 kg. Practical use scenarios: Marine rigging and sail handling: suitable for halyards and lines on boats to facilitate smooth steering and tensioning. Home workshop or garage lifting: ideal for overhead hoists or pulling heavy items with minimal rope wear. Outdoor and camping setups: useful for temporary rigging of tarps, shelters, or gear suspensions where robust, corrosionresistant hardware is advantageous.