erect and semi-erect bends question

I’m not exactly sure how to do these bends. I hear they’re great for evening out the penis and concentrating on areas that don’t seem to get as good a pump with regular jelqing. Can someone explain the process of erect/semi-erect bends?

You shouldn’t do those when you’re new to PE, because you might hurt yourself. But here is a link, if you want to read about them.

A Quickstart Guide to Manual Exercises

Just scroll down until you see "erect bend".