The RGA4 is a three way retrieval block fitted with an up/down winch mechanism and the standard fall arrest capability. This unit can be used as a standard fall arrest block but in the event of a fall the operative can be winched up or down to safety almost immediately. As most rescue systems only lower the casualty the RGA4 provides the additonal function of raising the operative to safety.The RGA4 can also be fitted to the RGR1 tripod for use in the confined access industry.The Man-riding rescue retrieval winch function is for use only as a rescue provision & NOT for access / egress.Where an operative is required to be lowered / raised for access / egress then please use such equipment as the RGR7 50m Two-speed Man Riding RGR7 Winch. This arrangement must be backed up with a independent separate fall arrest system and a rescue provision that is also separate to the winch. Where a 15m maximum length is suitable the RGA4 / RGA4H can provide both fall arrest back-up as well as the rescue provision.