3.       Take the SDD from the packaging box and hook the carabiner of the descender device into the eye of the pre- set anchor plate.

4.       Put on the body belt and adjust to a comfortable tightness, about 50 to 100 mm gap is preferably

5.       Seat on the edge of window, grab the free cable on the other side and hold it with force, release the cable and start descending. You can hold the rope if you use it along with the descender device, release the rope and descend, the rope provides double safety and mental support.

  .       Reach the ground, put off the body belt and another user in the high position can descend. It works in reciprocating manner.