The Showgear handheld cannon is a single-use cannon, prefilled with confetti or streamers. The bottom part of the cannon contains a cartridge which is filled with nitrogen. To fire a handheld cannon, twist the bottom end, and the pressurised cartridge shoots the confetti or streamers out of the barrel of the cannon.
All confetti and streamer materials are certified flameproof according to DIN4102-1 Class B1. Given its resistance to ignition, the use of these products in sensible amounts can be regarded as fire safe.
