500 Gram Finales can either serve as your finale items or your grand finale items. Most Finale items range from 12 to 99 shots, and offer a variety of patterns, colors and effects with common durations ranging from 20 seconds to over a full minute and more. At Porter's Fireworks, we have a simple rule - SILVER CRACKLE DOES NOT BELONG IN THE SKY!  We emphasize deep colors, stunning patterns and rich vibrancy in all of our aerial devices. If you want silver crackle, buy a fountain or a ground spinner! Silver crackle is bland and repetitive. We don't do bland and repetitve.