Deepseeker, I have one of the Brutus the Bulldog that Mackaydon linked to and they are for self defense but not very comfortable and with the fact that I carry concealed and a knife, this just seemed to be something that might never get used unless I had no place to put the others. Interesting little device for hard plastic and yes, an oddity. Rather not get that close in an attack if possible. and wouldn't give to a kid, could see them playing around and by accident, not pulling a punch with the thing a putting two holes in someone else! Ouch! Neat find anyway!