| 摘要 |
The unitary structure includes a rear frame member from which oppositely disposed side frame members extend forwardly. Laterally extending forward frame members are provided on the side frame members to define batting boxes for left and right hand batters. A pair of upstanding spaced apart posts are mounted on the rear frame member and include a center line extending forwardly through the strike zone. The guidepost adjacent the batter helps to define a swing path.
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