| 摘要 |
<p>PURPOSE: To provide a device by which the flying distance of a ball can be increased by tee shot or a golf club provided with the device. CONSTITUTION: A device A consists of a center board 1 with a thin thickness and a rectangular shape and a fixing piece 2 extending in the right angle direction from a long side of the rectangle of the center board. In addition, the device A is fixed on a golf club in such a way that the face of the center board 1 becomes along the right angle direction to the face 4 of the head B at the central part of the sole.</p> |
