Technically, it is a spring baton:
http://www.bushipower.com/Merchant2/graphics/00000001/A1095PP.jpg
A marvelous tool. My favorite model, when collapsed, just looks like a 7” dark steel tube that fits in a pocket. When extended, the double springs with a ball on the tip expand its length to 17”.
The ball delivers a tremendous amount of force to a small area. A person with one can clear their path through a crowd quickly.
Thanks.
Any idea how various states treat them vis a vis concealed weapon statutes?