| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate elements depending on sense from shot with a putter to the utmost, easily address a face perpendicularly to a target line by anybody, and conduct putt swing along the target line. SOLUTION: On an upper surface of a face member 2 provided with a face 1 for the purpose of hitting a ball, a forward protrusion emphasis line 11 is provided to get closest to the face 1 at a center upper position of a sweet spot S of the face 1, and get apart from the face 1 as it gets toward a toe T and a heel H of the face member 2, and a ball hitting direction indication emphasis line 14 is provided through a center upper part of the sweet spot S to be extended in a perpendicular direction to an extended surface of the face 1 upward.</p> |
