| 摘要 |
Described is a system and apparatus for swing instruction in any sport in which players use a swinging apparatus including T-ball, baseball, softball, tennis, racquetball, golf and hockey. The apparatus comprises a body comprising a substantially planar upper surface and positionable on a support surface, a home plate marking on said body, at least one step target marking adjacent to said home plate marking and at least one foot placement marking adjacent to said step target marking.
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