Expand the zone. Defined as "the area from the edge of the plate to the edge of the batter's box." AKA the Ghost Zone, Shadow Zone, Stri-Ball Zone. Numbered quadrant flaps provide specific feedback on pitch location. Induce batters to chase the Pitcher's Pitch, or induce the umpire to call this borderline pitch a strike. The River has quickly become our most popular product at all levels: baseball, softball, youth, high school, college, professional.
