| 摘要 |
A baseball bat (10) is provided which sized and configured for use in a baseball game by itself and in combination with a practice device (22) for use in training. The baseball bat (10) has a knob end (12) disposed at one end of the bat (10) adjacent to a cylindrically shaped handle portion (16) of the bat (10). The knob end (12) has a socket hole (18) in axial alignment with the bat (10). The practice device (22) includes a weight structure (24) having a weight (26) sized for positioning in coaxial engagement with the knob end (12) of the baseball bat. The weight (26) has a mass in the range of one to forty-eight ounces. The weight structure (24) has a connecting structure (28) projecting outwardly from the weight structure (24) for disengageable connection within the socket hole (18) to secure the practice device (22) in fixed position with the knob end (12) of the baseball bat (10) for use in training.
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