Narrow your focus and broaden your game with the Pro Performance Sports Sklz Quick Stick Swing Trainer. With a weight of 12oz. and a length of 30", getting reps with this swing trainer will help maximize hand speed hand-eye coordination and contact. The lightweight aluminum construction allows you to build your mechanics for increased power and hitting ability. The Quick Stick Swing Trainer comes with three plastic practice ball that is only to be used with this training bat. Improve your hitting skills with the Pro Performance Sports Sklz Quick Stick Swing Trainer.