A fidget spinner is a toy that consists of a bearing in the center of a multi-lobed flat structure made from metal or plastic designed to spin along its axis with little effort.
Fidget spinners became popular toys in 2017, although similar devices had already been invented as early as 1993. The toy became popular among schoolchildren and consequently some schools banned the spinners for being a distraction, while other schools allowed the toy to be used discreetly.
The toy has been advertised as helping people who have trouble with focusing or fidgeting by relieving nervous energy or psychological stress. As of May 2017, there is no scientific evidence that they are effective as a treatment for autism or ADHD.
Fidget spinners are useless machines designed to spin with little effort. A basic fidget spinner consists of a two- or three-pronged design with a bearing in its center circular pad. A person holds the center pad while the toy spins. They are made from various materials including brass, stainless steel, titanium, copper, aluminium, and plastic. The bearings are generally ceramic, metal (stainless steel or chrome), and some are hybrids—such as ceramic balls with stainless races and cages. Each fidget spinner also has two or more weights on the outside that make it spin faster and stay balanced. Bearings can vary to adjust for the design's spin time, vibration, and noise, causing unique sensory feedback.
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