Stainless steel and cast aluminium housing for corrosion resistance.Galvanized steel 50 ft x 3/16 inch wire rope for durability (50, 85 and 130 ft lengths in galvanized or stainless steel is available). Built-in retrieval winch for raising/lowering load during emergencies with built-in shock absorbing capabilities (fall arrest capabilities in retrieval mode for added safety). Input crank handle incorporates brake which will prevent movement of the load if the operator accidentally released the handle during raising/lowering. Winch drive incorporates and overload device thus reducing the possibility of injury should the worker become entangled during retrieval. Environmentally sealed design for safety, even in harsh environments. Self-adjusting disc brake for reliability. Reserve lifeline retention system for added safety. Self-locking swivel snap hook with impact indicator. Swiveling anchorage loop to prevent twisting of lifeline. Quick-mount bracket enables user to attach to a DBI/SALA support structure with ease and carrying bag. Meets or exceeds all applicable industry standards including OSHA, ANSI and the stringent ANSI Z 359.