A training ball for baseball; It can only be used for catching and throwing, not hitting; It was made of silicon, and weighs the same as a professional baseball; It is engineered to bounce in an unpredictable manner; It is self correcting so almost anyone of any age can use it to develop a stronger arm, better range, quicker hands among many other skills; One can practice alone his/her pitching, outfielder skills, as well as almost any infield position except catcher