| 摘要 |
A training device for improving baseball, softball and tennis skills is provided by the present invention. More specifically, it is a versatile training device with a control box offering various functions to include a universal adaptor to leaf-yard blowers, fittings for extender and discharge tubes, a built-in stand and a control box design to cause a turbulence and capturing of air. The invention has various sized, curved and shaped tubing so as to throw various pitches, such as, softball loobs and coach's pitch loobs, fastballs, grounders, pop flys and believed curved balls. The invention has proven to help both the skilled and unskilled and has an optional designed automatic ball feeder, ball retriever and storage hopper.
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