I have a used Insider Bat in great condition. This is is the Model #6 version for ages 11 and younger.
From the InsiderBat.com website: The Insider Bat™ is a revolutionary baseball/softball muscle memory training tool that promotes proper grip, hand placement and proper swing path before, during and after contact is made. The unique design allows for only one way to make contact with the ball…the CORRECT way! If used properly, the Insider Bat™ will assist in creating positive muscle memory for a fundamentally correct swing.
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