1.High-strength alloy steel casing:Wear-resistant and impact-resistant, high-temperature baking paint for safer use.2.Self-locking hook for added safety:High-strength forged hook with quenching and refining, not easily deformed, and a safety latch to prevent detachment.3.High torsion-resistant steel wire rope:Multi-strand wire rope can cushion impact force in sudden situations.4.Forged steel hook with alloy steel connector:The D-shaped alloy steel connector connected to the shell has a strong load-bearing capacity, ensuring safer use.►Application◄This Self Retracting Lifeline has high sensitivity, good reliability, simple configuration and easy to test, which can availably avoid the failing accident of the cage and protect the life of ground operators.This safety anti-falling device is widely used in electrical maintenance, work high above the ground, engineering construction and transportation. ►Double U disc brake system◄ Dual swivels included on all cable models to minimize lifeline from twisting during use. Stable locking, more safe and reliable. Fall arrester can quickly brake and lock falling objects within a limited distance (≤8in/0.2m ). ►New self-locking hook design◄ ① Material: alloy steel ② High load capacity: 330lbs ►Aviation grade wire rope◄ Aviation grade steel wire rope is adopted, with multiple strands and stronger pulling force.