Miller® Shock-Absorbing LanyardsShock-absorbing woven inner core smoothly expands to reduce fall forces. Snap hooks have 3/4" gate opening; rebar hooks have 2-1/2" gate opening.Meet OSHA, ANSI, and CSA standardsManyard® IIStretch from 4 to 6 ft. to reduce tripping, snagging or dragging. Integral red core for easy visual inspection. Nos. 1XEN9 and 1XEP1 meet ASTM F887-05 arc-flash standard.