Lanyard Options FC457AB-6' adjustable length shock absorbing web lanyard w/pack, with #74N(Steel, 3/4" gate, locking snap) one end, #135 (Steel, 2 1/2" gate, locking rebar snap) other end. FC457AB135A-6' adjustable length shock absorbing web lanyard w/pack, #74N locking snap one end, #135A (Aluminum, 2 1/2" gate, locking rebar snap) other end. Lanyard Accessories DT-Made for extended free-fall. EXT-Additional D-ring added to the lanyard providing a secondary in-line attachment point for an SRL or other connecting device.