| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an iron club set which can sufficiently exert performance of each club, and corresponds to power and skill level, etc., of a golfer. SOLUTION: With respect to an iron club set composed of plural iron clubs which are provided with a face plate and a head body 2 having a face plate fitting depression wherein a perforated window part 5 perforating to the back 6 is formed in a part, the position of the perforated window part 5 is set so as to be changed sequentially or in phase, as the number of club size gets larger.</p> |
