Details: The 3M™ DBI-SALA® Nano-Lok™ Edge Self Retracting Lifeline, 3500221 is a self retracting lifeline (SRL) designed with a speed-sensing brake system that stops a fall within inches to keep you safe when you're working at heights. Equipped with 8 ft (2.4 m) of 3/16 in (5 mm) galvanized steel cable, thermoplastic housing and corrosion-resistant hardware, this lifeline also includes a swiveling anchorage loop, a aluminum captive carabiner and a built-in connector for single-leg direct attachment to a harness. Specially engineered for foot-level tie-off, this lightweight SRL stays out of your way as you work, retracting as needed to minimize trip hazards.The 3M™ DBI-SALA® Nano-Lok™ Edge Self Retracting Lifeline edge is specifically designed for foot-level tie-off and sharp edge applications often found in construction. Nano-Lok™ locks quickly—stopping a fall within inches—providing more protection at low heights. In addition, tension is always kept on the lifeline, which reduces dragging, snapping and trip falls. Both features are key safety improvements.Designed for foot-level tie-off and sharp edge applicationsBuilt-in connector for single-leg SRL direct attachment to harness8 ft (2.4 m) lifeline with 3/16 in (5 mm) galvanized steel cable lifelineAluminum captive carabiner on end of lifelineCompact, lightweight designDurable, impact-resistant thermoplastic housingSwiveling anchorage loopQuick activating speed-sensing brake systemIntegrated backpack-style energy absorberWide variety of configurations availablei-Safe™ equipped