3M Dbi-Sala 3100524 Nano-Lok Personal Self Retracting Lifeline, Quick-Connect,
3M™ DBI-SALA® Nano-Lok™ Self-Retracting Lifeline is ideal for direct connection to most harnesses. 3M™ DBI-SALA® Nano-Lok™ Self-Retracting Lifeline is lightweight with a compact design and industrial-strength durability.