The Apturaâ„¢ LT30 Self-Retracting Lanyard from MSA offers a field-replaceable lifeline option, which allows a user to replace a damaged web lifeline in the field without sending anything back to the manufacturer. The 30-ft. SRL features a lightweight design (starting at 7.5 lbs.), a 400-lb. working capacity, and a high-impact thermoplastic housing.MSA Fall Protection, Pittsburgh, PA.