Bownet Zone Counter Target Attachment for Bownet Training Nets Zone Counter Attachment can be used to visualize a catcher and help aid pitchers in improving throwing accuracy Stitched nylon straps and nine targets engineered to outlast thousands of high intensity pitches 9 Zone target simply attaches on the Original Big Mouth Training Net, Soft Toss Practice Net, Hitting Station, or Mini Backstop. All training nets sold separately Durable nylon straps loop onto training net's composite BOW-poles and are easily adjustable to suit pitcher's height and pitching preference Bownet Strike Zone Attachment (sold separately) recommended for beginner to intermediate pitchers