Hack Attack Softball machine is a three-wheel design so the batter can see the ball clearly all the way through the pitch delivery. The hitter can see when to stride and the angle release, giving her an actual live-arm sense of timing and location. With a quick turn of the dials you can effortlessly throw 80+ MPH fastballs, breaking balls, risers, screwballs, and drops. Changes breaking pitch plane by simply adjusting wheel speed dials. The elevation adjustment handle will raise or lower the pitch.