| 摘要 |
This invention relates to an instructional bat having an adjustable ball-striking sleeve for training a batter to consistently make contact with a pitched ball on the sweet spot of a standard baseball or softball bat, and for improving the hand-to-eye coordination of the batter. The term "sweet spot" is defined herein as the area around the center of mass of the bat. For standard 33-inch bat, for example, the sweet spot is generally defined by an 8-inch length extending from about 3-inches from the barrel end of the bat to the handle.
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