3M™ DBI-SALA® Nano-Lok™ Personal Self Retracting Lifeline, Twin-leg, Web, 3101718, 1.8m The 3M™ DBI-SALA® Nano-Lok™ Personal Self Retracting Lifeline is a 1.8m Single-leg lifeline with 19 mm Dyneema® fibre and polyester web and steel rebar hook, quick connector for harness mounting. It is designed with a speed-sensing brake system that stops a fall within inches to keep you safe when you're working at heights. This lightweight 3M™ DBI-SALA® Nano-Lok™ SRL stays out of your way as you work, retracting as needed to minimize trip hazards. Lightest CSA certified personal SRL that allows for knee level tie-off Smart activating brake system provides fall clearance as low as 1.2 m - up to 4 m less than lanyards Lightweight speed connect system reduces connect and disconnect time by up to 60% Durable nitrile rubber energy absorber cover designed to last 4 times longer than previous version Reduced energy abosorber size is more user friendly and convenient compared to previous version