EZ-Stop Shock Absorbing Lanyards• Features the lightest, smallest , and strongest shock absorber in the world; 66% smaller and 40% lighter than previous EZ-stop models • Lightest and strongest rebar hooks on the market • Thinnest-ever webbing using HI-10 Vectran® energy management material for reduced weight and bulk• Vectran® is a multifilament high tenacity performance yearn spun from liquid crystal polymer that is five times stronger than steel• High impact resistance  • Certified to CSA standard Z259.11-05, Class E4.