Rawlings 9oz Hitting Jack It Bat Weight - Baseball Training Aid for Power & Swing Speed | Perfect for Batting Practice & Strength Training

The HITJACK Batting Weight is the first and only weight in the game you can hit live batting practice with! It is a complete hitting system that provides immediate results. The HITJACK System quickly builds bat speed and power, and forces the batter’s hands to work properly, thus creating improved technique.

• Develop hitting power with resistance training
• Safe for live pitching
• Fits wood, aluminum and composite bats for baseball, slo-pitch and softball