Fidget spinner

Fidget spinner
A fidget spinner is a toy that consists of a ball-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 April 2017, although similar devices had been invented as early as 1993. The popularity of the toy among children and teenagers has led some schools to ban use of the spinners in class for being a distraction, while other schools have allowed the toy to be used discreetly.