Penetrator 2+2 mobile fall protection system offers both unparalleled portability and compact design. The Penetrator 2+2 provides fall protection for 2 fall arrest and 2 fall restraint or a total of 4 workers. When a fall occurs, the powerful penetrating spikes engage, piercing through roof membrane, insulation as well as metal decking, thus creating a safe, secure fall arrest anchor. For use on most substrates, EXCLUDING concrete, the Penetrator has been tested for use on Built-Up, TPO, ISO, PVC, EPDM, and other standard materials that are part of a finished roof system. The Penetrator 2+2 is reusable, gross weight of Penetrator 2+2 with ballasts is 420 lbs. When used with a body harness, the maximum arresting force should be limited to 1,800 lbs. and the free-fall height should be no more than 6 feet.