WORK SMARTER: Pairing the skinny barrel (32" length / 30oz) of the Overload Training Baseball Bat with the smaller size of the Micro Crusher engages every muscle and mind connection to make precise contact with the ball. BAT SPEED: By concentrating all 30 oz. of the bat weight into a skinny barrel, the player will feel the improved bat speed in live games. Overload Bat can only be used with included Crusher balls ENHANCE BALL TRACKING: This bundle is perfect for baseball coaches and trainers helping athletes improve hand-eye coordination when they step into the batter's box OVERLOAD TRAINING: Strengthen all the muscles involved in producing a powerful swing, especially in the shoulders and hands, with this baseball-hitting trainer MICRO CRUSHERS: These bright red crushers are ideal for eye-focus coordination & allow you to fine-tune your swing accuracy, speed, and power. The built-in holes ensure the baseball follows the true flight path but minimize distance when hit