Step 1: The Dumar
2. a rope is attached though a hole in the bottom of the dumar, this rope has to be a loop that reaches down to your foot and then back up again.
3. thats it, to climb a fence you need two, one for you right hand and foot and another for your left limbs.
then to climb a chainlink fence you need to put one foot in eackh rope sling and then lift up one dumar (with your foot still in the loop) and hook it to a fence. then (using your foot and hand still attached to the fence) pull your other hand above the hand on the fence and put your foot in, repeat till you get to the top. (sorry its real hard to explain without pictures, :[ sounds complicated but is quite simple