| 摘要 |
<p>PURPOSE:To expand a sweet spot and to enable a player to increase concentration at the time of addressing. CONSTITUTION:The rear part of a head body 1 is provided with a weight 6 having the sp. gr. larger than the sp. gr. of the material of this head body 1. The rear surface 1A of the head body 1 and the rear surface 6A of the weight 6 are formed to a plane shape. The sweet spot is increased by increasing a centroid depth L. Unsightly spots do not exist any more at the rear part of the head and the player is able to increase the concentration at the time of addressing.</p> |
