3M DBI-SALA Nano-Lok 3100087 Connector for Nano-Lok Self Retracting Lifelines, Twin-leg Connector, Blue Installs to the webbing of harness, leaving the dorsal D-ring open for other equipment or rescue Designed to provide a snug fit to the worker's back, eliminating nuisance flopping Strong 5,000 lb (22 kN) connector safely anchors the SRL to your harness for complete safety Exttremely durable finish will stand-up to even the harshest environments for extended longevity The device is virtually unnoticeable on your back, stays out of the way and safely attaches the Nano-Lok to your harness Twin-leg connector for Nano-Lok self retracting lifeline