The Junior Hack Attack Baseball Pitching Machine is the major-league quality training tool designed to develop serious young players. This exclusive three-wheel design changes the breaking pitch plane by simply adjusting wheel speed dials. (All two-wheel units require time consuming awkward throwing head adjustments to change from fastballs to curveballs or right to left handed breaking pitches.) The Junior Hack Attack’s elevation adjustment handle will raise or lower the pitch. With a simple turn, you can even move the pitch up or down within the strike zone between pitches.