Designed with color-coded pitching key and finger markers to show players perfect technique, the SKLZ(R) Pitch Training Baseball can be used by right and left-handed pitchers. This training ball outlines 4-seam fastballs, 2-seam fastballs, curveballs, and sliders to help them develop a full arsenal of pitches when it's time for them to hit the rubber. Train With Purpose Color-coded pitching key printed along the baseball showcases proper grip for each pitch Identifies four different pitches: 4-seam fastball, 2-seam fastball, curveball, and slider Can be used by right and left-handed pitchers Official size and weight baseball