Fidget Spinners: What They Are, How They Work and Why the Controversy

A fidget spinner
(Image credit: LiveScience)

This season's hottest toy is marketed as an antidote for attention deficit hyperactivity disorder, anxiety and autism — but it's also being banned in classrooms across the country.

"Fidget spinners" are small, ball-bearing devices that the user can rotate between his or her fingers. The momentum of the toy provides a pleasing sensory experience, according to user reviews, while the challenge of tossing, transferring and twirling the spinners has spawned an entire universe of instructional YouTube videos. [How Fidget Spinners Work: It's All About the Physics]

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Stephanie Pappas
Live Science Contributor

Stephanie Pappas is a contributing writer for Live Science, covering topics ranging from geoscience to archaeology to the human brain and behavior. She was previously a senior writer for Live Science but is now a freelancer based in Denver, Colorado, and regularly contributes to Scientific American and The Monitor, the monthly magazine of the American Psychological Association. Stephanie received a bachelor's degree in psychology from the University of South Carolina and a graduate certificate in science communication from the University of California, Santa Cruz.