| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wood club head which is improved in durability and is high in repulsive force at impact while an increase in a head weight is suppressed as far as possible. SOLUTION: The wood club head of a hollow shell structure made of metal having a head volume of >=250 cc is provided with a rib region formed with a plurality of ribs having a component in the vertical direction of the face only near the face center on the rear surface of the face for hitting the ball.</p> |
