Prepare for live pitching with the most realistic training softball on the market, Baden Sports Optic Yellow Dimpled Pitching Machine Softball. This set of 12 is the perfect training tool for any ball player. It's designed to look like an authentic softball which better trains the batters eye and makes it feel like you're playing with the real thing. This softball is also dimpled and boasts red inset seams that won't fade or wear with repeated use. Dimensions: 12 circ. in. The ball is made of durable rubber. If you're looking for the best dimpled training softball in the market, look no further.