9mm Safe Shot noise blanks

I do not remember how and why I have these training blanks (or if I’ve already asked about them). I did find this thread by Lew viewtopic.php?f=8&t=9272&p=66542&hilit=safe+shot#p66542 but did not see referal to these (maybe too tired from going to work every day over last 2 weeks). Are they paint blanks?

Pivi - they are noise blanks, and are made to be used with a special barrel that basically has no bore, so that the pistols they are made for will work semi-auto. A pretty expensive proposition, but a large enough PD could afford to have a few of them. The color of the base has meaning.
I have house guests from Germany right now, so it may be a couple of days before I can expand on this, if no one else does and you need more information. I don’t want to be opening and closing file drawers, as everyone but me is in bed now, and my library is right under the bed rooms.