A good friend I used to trap hogs with had one of these and I had no clue what it was… but it worked. Then I received this e-mail showing how to make one with a couple different ways to make one.
You start out with a five foot piece of PVC and some caps for it. A lot
of people just drill a hole and use a cable to keep the caps on and to
hook it to the T post. What ever you use it works a lot better if you also
put a swivel into the chain or cable to keep the twist out of it.
Here are a couple different varriations…