Excuse me, what is the crutch weapon used by Jet Li in the movie?

Brother, I can teach you how to use this weapon. Usually there are two kinds of such weapons.

1. Folding will pull out the handle and push up the iron ring on the rod.

Usually there is a button on the umbrella handle of this weapon. When you press it, something wonderful will happen.

I don't think Jet Li used the first one in the film.