The 9 Hole PRO MODEL Pitcher's Pocket is an ideal practice screen for advanced pitchers. In this smaller version of the standard 9 Hole Pitcher's Pocket, the 9 pockets represent the actual size of the strike zone. It's like having a catcher that tells you exactly where the pitch was thrown. Works great on the practice field or in the cage. Also makes for great competition during practice. The adjustable legs are perfect for dialing in the strike zone at any age level. Colleges and even pro teams have utilized the Pitcher's Pocket in their training routines.