[Strong Structure]: This device is equipped with 270° rotatable zinc alloy hooks and high-strength bolts, ensures a stable load, and is easy to operate at multiple angles. [Long-lasting Design]: With its rust- metal bearings and rust- galvanized housing, the pulley block and positioning pulley system ensures long-lasting performance, effectively resisting without breaking, wearing out, or fading, with outstanding reliability. [High-strength Ropes]: Adopting high-strength polyethylene ropes meticulously guided by multi-strand filaments, this device offers high strength, abrasion and resistance, and strong loading capacity, ensuring high safety and worry-free operation. [Easy and Efficient Operation]: This effort-saving pulley block design greatly improves mechanical efficiency, reduces manual pulling exertion, and makes heavy lifting easier. It is suitable for complex installation environments such as air conditioning installation., Weight: 3.68723133195 Pounds, Manufacturer: Gishbjka