French Creek 1791 – Roof Retractable System is a self-retracting lifeline bracket that rotates 360? for maximum safety and maneuverability. Mountable on steel, metal or wood roofs. (Retractable sold seperatley, Compatible with RL25, RL30, RL50) SPECIFICATIONS Item Weight:? 23 Lbs Hardware Material:? High strength powder coated steel Standards:? ANSI Z359.1, meets or exceeds all OSHA Requirements