The unique, stretchable design of ShockWave™2 shock absorbing lanyards allow your crew complete freedom of movement so they can work most efficiently. Plus, they reduce trip fall hazards, dragging or snagging by expanding to 6 ft. (1.8m) when taut and automatically contracting to 4-1/2 ft. (1.4m). In the event of a fall, the unique inner core begins to extend and absorbs energy, limiting the fall arrest forces to safe levels.