Self Retracting Lifelines (SRLs) offer movement, both vertical and horizontal, relative to a traditional lanyard. Choose a secure anchorage point overhead, whether at the top of a ladder, or a beam in a construction site. The cable or webbing pays out according to your movement, retracting as you return, then stopping in the event of a fall or sharp movement. Most units incorporate a shock absorbing feature, which limits the force of stopping. Take care when choosing an anchor point, trying to reduce or eliminate the possibility of a swing fall. That is, the SRL stops your fall, yet you still swing into another object for a secondary impact. Whether you call them yoyos, retracting lanyards, seat belts, fall limiters, or something we've never heard of, SRLs provide excellent fall protection for those working at heights.