Roman candles are a single tubes that fire many shots, unlike repeaters and shells that only fire one shot per tube.

Roman candles are a single tubes that fire many shots, unlike repeaters and shells that only fire one shot per tube.
The shots fire one at a time out of a tube. The type of shots can range from a simple colour star to more complex stars that flash, explode, whistle, and crackle. Larger bore roman candles even have shots the shoot out and burst like miniature aerial shells.
The device is ignited from the top. It burns slowly - as it is consumed, the flame moves down through the tube. When the flame reaches the topmost pyrotechnic star, the star is ignited. Because the star fits loosely in the tube, the fire spreads around it and ignites the lift charge. The lift charge burns quickly, propelling the star out of the tube, like a bullet from a gun.

A range of products are available to cater for most display budgets, from assorted selections of Single Roman Candles up to mighty Batteries of Multiple Roman Candle Units. They are available in a variety of colour or noise effects to produce a good aerial display.