- "Shocking-pink Catherine wheels five feet in diameter were whizzing lethally through the air like so many flying saucers."
- —Fred and George set off their fireworks at Hogwarts[src]
A Catherine wheel is a type of firework which when ignited rotates quickly, producing a display of sparks and coloured flame.
Fred Weasley and George Weasley made Catherine wheels as part of their Weasleys' Wildfire Whiz-bangs line of fireworks. They unleashed them in Hogwarts School of Witchcraft and Wizardry the day that Dolores Umbridge was assigned to be Headmistress.