Why do firecrackers hang on long poles?

Can be tied to a long pole with iron wire or string.

Firecrackers are designed with multiple firecrackers strung together. The joints are all lead wires, which are loose. If you want to hang them on long poles, you need to use other tools to make firecrackers stronger. You can tie them around a long pole with iron wire or this string.

Firecrackers have different names in different historical periods, from firecrackers, blasting poles, firecrackers, weaving guns to firecrackers.