Fidget Spinners

A fidget spinner is a toy that is suppose to relieve stress. On fidgetspinner.com it says "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 person who invented fidget spinners is a woman called Catherine A. Hettinger she invited the toy during the 1990's it was they're solution for people with ADHD. On Wikipedia it talks about her and it says "During the summer, Hettinger was suffering from myasthenia gravis, an autoimmune disorder that causes muscle weakness, making it difficult to care for her daughter." Catherine A. Hettinger has passed away and had no profit from the toy during the time she was alive but she did invent a toy that hit the sky's in 2017. 

Fidget spinner