The Safewaze FS-FSP1409-W-DL 9 ft Web retractable lifeline features a mobility enhancing swivel-top, rugged durable housing, and unique braking system that eases shock and minimizes free fall distance in the event of a fall. The unit also includes a fall indicator that is sewn into the webbing.Material: Aluminum housing, 1 in 25.4 mm Ultrahigh Molecular Weight webbing w/ sewn-in fall indicator, Forged steel snap hooks, Steel carabiner, Steel O-rings