The Junior Hack Attack Baseball Pitching Machine has all of the unique features of the Hack Attack Professional Pitching Machine. This unique three-wheel design allows you to see the ball clearly all the way through the feeding motion, acceleration and release, just like a live pitcher. The hitter sees when to stride and the angle of release, giving him an actual live-arm sense of timing and location. In developing hitters, especially at younger ages, there is nothing more important than timing and vision. Any change in pitch, from fastballs to any breaking pitch, is quickly dialed in using the three speed knobs. (All two-wheel units require time consuming awkward throwing head adjustments to change from fastballs to curveballs or right to left handed breaking pitches.) With a quick turn of the dials you can effortlessly throw 70+ MPH fastballs, and right and left handed breaking pitches including curveballs, sliders and split fingers. (On other two-wheel pitching machines it may be an awkward time-consuming adjustment.) The 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. Throwing head pivots instantly in any direction for all fungo work including deep 250 ft. fly balls, line drives, catcher"s pop-ups, infield pop-ups and grounders. The Junior Hack Attack quickly moves on and off the field, just tilt it, unsocket legs and easily roll on two transporting wheels. The front wheel guards insure the throwing wheels never come in contact with the ground. The Junior Hack Attack is designed for use with all regulation and pitching machine balls. It is also the only pitching machine that will convert quickly to throw a special 7.5" diameter vision training ball. This critical size forces centering and tracking while maintaining proper hitting mechanics. No assembly is required. Product dimensions: approx. 25” x 20” x 26” 75 pounds Shipping weight: 100 pounds