3M DBI-SALA Nano-Lok Edge Self-Retracting Lifeline (SRL) is designed for ANSI Class 2 foot-level tie-off and leading edge applications. Approved for Mobile Elevating Work Platforms (MEWPs), this SRL is ergonomically designed for ease of use and is ideal for direct connection to most harnesses. It’s compact design is easily worn on the user's back and stays out of the way; it can also be used as a lanyard replacement.