I think there may be more than one brand of this cleaner available-- I have to say that this thing WORKS! It totally removed the burn rings on my stainless revolver with no difficulty. Not stinky, but wearing nitrile gloves is probably a good idea. Anything that attacks carbon like that can't be good for your skin.
I found the wonder cloth on Amazon--none available in my local stores.
I found the wonder cloth on Amazon--none available in my local stores.