PYROPAK® Flashpots create a flash of light with smoke and a bang. Three sizes are available; small, medium, and large. The small (1/2” diameter x 2” tall tube) creates a small bang and flash approximately 4 feet tall and 1-2 feet in diameter. The medium (1/2” diameter x 3” tube) creates a larger flash and bang at 6 feet tall, and 1-2 feet in diameter. The large (3/4” diameter x 4” tall tube) creates the largest flash and bang, at a finished effect size of 8 feet tall and 2-2.5 feet in diameter. Suggested minimum vertical clearance is 15'. Sold with a match installed, standard lead length is 72".