In the bottle of our eau de parfum “9mm”, you will find an original (empty) 9mm parabellum cartridge. It has been modified to serve only non-violent purposes. In its back, we cut an m3 threading which fits the eyebolt screw that hangs from the bottles neck. To get to the cartridge, the bottle needs to be destroyed. Please do not do this at home! Smashing glass can cause serious injury or death. Visit an authorized destroyer who will happily assist and protect you (most our retail partners are also authorized destroyers)