A fidget spinner is a type of stress relieving toy. A basic fidget spinner consists of a bearing in the middle, and other parts are made of a variety of materials including brass, stainless steel, titanium, copper and plastic. The types of bearings generally used are ceramic, metal (stainless steel or chrome) and hybrid designs. Different bearings produce different vibration, noise level, and spin time.
This toy may help people who have trouble focusing or anxiety by acting as a release mechanism for nervous energy or stress.