CMC Rescue MPD
Pulley + Rescue Belay + Descender
Developed during four years of research & testing, the MPD is the next major advance in technical hardware for professional rope rescuers - a multi-purpose device that performs all functions for main lines, belay/safety lines, tag lines and hoisting lines. The MPD can be used to tension high lines and guiding lines.
UL Classified to NFPA 1983 - General Use
See @ http://www.rescueresponse.com/store/cmc_mpd_pulleys_rescues_belays_descenders_333000.html