Skylotec Pulley Kit 5:1 Hauling System 15m-150mThe PULLEY SET 5: 1 is a self contained, pre rigged hauling system with controlled descent capability including an auto lock (progress capture) function during lifting, and an easily operated lowering mechanism with secondary lock (also called Over Lock or Panic Lock function). It can be used for rescue within industries where confined spaces and restricted areas are present and for advanced or special rescue situations. It works as a single line