A device consisting of a heavy tube filled with composition and having a choke or restricted orifice. Upon ignition, the device emits a shower or spray of sparks and fire. dt class="txtred" Igniter or Electric match A device used to ignite pyrotechnic material. Electric matches commonly consist of a wire terminating at a relatively high-resistance bridge wire surrounded by pyrotechnic composition. Sending the proper amount of current down the wire to the pyrotechnic component activates the device. This generates enough heat to ignite the pyrotechnic material at the end of the match and create a small flame.

A gerb is a type of firework which produces a jet of sparks, usually from 30 to 120 seconds. It is a thick-walled tube filled with pyrotechnic composition and possessing a choke, which is a narrowing in the tube. Gerbs are often referred to as 'fountains'.