3M™ Self Trailing Rope Grab 124 with SafeLight 2 foot Energy Absorbing Lanyard permanently attached, rated for 310 lbs. For use with 3M 0221 Vertical Lifelines. Benefits Economy lanyard meets requirements of ANSI Z359.1-2007 standard SafeLight models available with integrated energy absorber or external energy absorber SafeLight models available with snap hooks and/or rebar hooks, allowing for a variety of attachment options SafeLight models available in single leg or dual leg styles