SRLS automatically extend and contract as workers move, so they can only be used to stop falls, not to stop them. The srl is also longer than other fall protection lanyards, often able to stick out 30 or even 50 feet, which allows workers to access sites at different heights. Automatic retracting ensures that there is no slack in the line, so the braking system can be activated immediately in the event of a fall. The srl has a long extension range, which means that the wire rope must be kept directly above the worker to prevent the swing from falling. While some fall protection lanyards can be used with any adequate anchorage point, SRLS almost always require a fall protection system designed so that the device is directly overhead to provide maximum safety benefits.Fall guards are designed to keep workers safe by limiting the physical areas they can enter, while fall guards are designed to slow and stop workers from falling. Both the fall guard and fall guard use lines, safety belts, and connections to secure the worker to an anchor point. A fall protection tether is a fixed-length line, usually made of rope, strap, or cable, and is usually shorter than an srl, which can often reach 30 or even 50 feet. Workers who need a fall guard or job positioning device will often use a fall guard rope that is the right length for their specific application. When designed to be fall-proof, they have a built-in shock absorption feature; This type of drop resistant lanyard is called an energy absorption lanyard (EAL). When used with a proper fall protection system, some eal may be suitable for use against falls and falls due to the fixed length design and shock absorption capabilities.