Using the copper rods can be entertaining!
The rods are made from a length of copper, about 24" each. They are bent into an L shape the foot being about 8" long.
The idea is to hold them in your hand, in a similar fashion to holding a pistol.
Try to hold these as loosely as possible, to avoid having friction interfere with their movement.
Holding rods about 6" apart, the long ends pointing forward. To learn how to use these, its best to practice on a known target, such as a buried cable that you know where its located.
Go to a point that is about 10 feet from the target, start walking towards it, holding the rods as I previously directed.
As you cross over the target, the rods swing in, towards each other, then once past they open up again.
There are some people out there who believe in witchcraft, so try to avoid using this procedure, in their presence, as they may wish to burn you at the stake.