| 摘要 |
A horizontal tube (1) having a mark (6) for the left foot position, and havi ng a sequence of preferably three marks (3-5) for the right foot position for thr ee ranges of club numbers. A shaft (10) is inserted transversely through the tube via one of three horizontal transverse holes (7-9) corresponding to the ranges of clubs indicated for the right foot. The shaft is tapered from end to end, and stops in the transverse hole at position depending on the diameter of the hole. This position is designed such that the shaft extends forward a distance appropriate for ball placement for the given range of clubs. For adjustment, the user need only move the shaft to one of three holes. This configures the device for both the lateral and longitudinal placement of the feet relative to the ball.
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