Fountains come in a wide variety of sizes, shapes, and duration. Designed to be viewed as ground displays, they project upwards sprays of sparks and color and may also feature whistles and noisy crackling sound effects.Their size ranges from tiny single tube items up to large 500 gram multiple tube devices sometimes burning as much as two or three minutes. Fountains are a great way to vary a backyard firework display between aerial devices and low level ground displays and they offer a terrific value for your money. In some States in the USA where aerial devices are not allowed by law it is often the case that it is possible to legally use fountains.