What sizes of friworks work in the sky?

Fireworks that are designed to be launched into the sky typically come in sizes ranging from small aerial shells, about 3 inches in diameter, to larger shells that can be 6 inches or more in diameter. The larger the shell, the higher it can ascend and the more elaborate the display it can create. Common sizes for professional displays include 4-inch, 5-inch, and 6-inch shells, which are capable of reaching significant altitudes and producing stunning visual effects. Safety regulations often dictate the permissible sizes and types of aerial fireworks for public displays.