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The brand that made the yo-yo an American institution — and then nearly lost it all in court. In 1963 alone, Duncan sold a reported 33 million units, but a legal fight over the word 'yo-yo' sent the company into bankruptcy. The brand recovered, and by the 1990s, every kid's entry yo-yo was still a Duncan Butterfly or Imperial.
The yo-yo that thought for you. A centrifugal clutch inside meant a sleeper that worked on day one, even if you'd never held a yo-yo before. It wasn't about finesse — it was about giving your hand a fighting chance.
The workhorse of the late-90s yo-yo craze. Where the Brain was training wheels, the Fireball required actual skill — a free-spinning axle that let you sleep long enough to land tricks that looked impossible. This was the yo-yo you graduated to.