Retractable lifelines provide extreme durability with high mobility. These units offer an extended range of movement, zero slack to eliminate tripping hazards, and a centrifugal braking system that engages at the slightest of falls!The RL25AGZ is premium self-retracting lifeline with 25 feet of galvanized wire rope. Durable, lightweight cast aluminum housing featureing a dual internal intertia braking system and external deceleration pack for easy inspection.