Floo Powder

Floo Powder was a glittery powder used by witches and wizards to travel by the Floo Network. Throwing a handful of Floo Powder into a connected fireplace would turn the flames emerald green and allow the witch or wizard to step into the fireplace and travel to their desired destination. The Floo Network did not require a license, which meant younger witches and wizards could use it. But, as Harry Potter discovered on his first attempt, a mumbled instruction could deliver the traveller to the wrong location entirely.