Fidget spinners are everywhere! Fidget spinners have a bearing in the center and three lobes that come out from the center. They are designed to spin with little or no effort. According to Wikipedia, the spinners debuted back in 1993 but became wildly popular in 2017. The spinners have been touted as helping relieved nervous energy or psychological stress.
As of May 2017, there is no scientific evidence supporting those statements.
They are supposed to help young children relieve stress, but seem to cause teachers a great deal of stress!