Self retracting lifeline can be used for support in personal fall arrest applications. Lightweight and practical design to replace standard tethers. No free fall is permitted. SRL must always be positioned at or above harness dornsal D-ring. High strength carabiner and snap hooks are some of the choices for the anchor. Max capacity 420lbs. max arresting force 1800 lbs. max deceleration distance is 24" Locking speed is avg 4.5ft/sec.