FallTech DuraTech 6 ft. Self-Retracting Device* The DuraTech Self Retracting Device reduces the fall clearance needed and the arrest forces found in traditional lanyards so you can work in more places on the job. * This fall limiter includes a durable main spring that outlasts the competition and keeps this unit in your arsenal longer. * The glass reinforced polycarbonate housing of this 6 ft. SRL is more durable than the plastic housing found on typical fall limiters. * The single leg DuraTech