The Champro 10” 15 oz. Control Flight Ball is the perfect training ball for wherever you take it. The training ball is constructed from a highly durable material that will withstand constant and consistent swings, from any age hitter. The Champro training ball is designed to give immediate feedback through increasing a hitter’s power and swing control, making this the perfect training ball for any coach who may coach at multiple different levels. Make your practice swings count with the Champro 10” 15 oz. Control Flight Training Ball.