Palm-sized Fidget Ball, now available in 2 sizes! The original is made with 15 stainless steel interlocking rings. The Jumbo has 45 stainless steel rings. Super satisfying and relaxing, like a stress ball made of rings! When shaken the Fidget Ball makes a similar sound to shaking loose change but, don't let that stop you from trying it! The Fidget Ball has become one of our biggest sellers for helping students focus in the classroom - it is just as effective without being shaken.