A fidget spinner is a type of stress-relieving toy.
A basic fidget spinner consists of a bearing in the center of a design made from any of a variety of materials including brass, stainless steel, titanium, copper and plastic.
The toy may help people who have trouble focusing or fidgeting by acting as a release mechanism for nervous energy or stress.
Although they were invented in the 1990s, fidget spinners became a popular toy in 2017, as fidget toys in general began experiencing mainstream popularity. Often marketed with health benefits, the toy began being used by school children to help focus.