Abstract: This invention provides a golf club head that is made with simple structure and can be changed of its total shape and mounting position of a golf club shaft by partly replacing its parts. Therefore it is superior in flexibility of choosing its shape, and in versatility. Since the golf club head can commonize many parts, inventory control will be easy, and is superior in mass productivity. Further, beginner and amateur players can easily customize the center of gravity position depending on their preference. Therefore, they can use the golf club head for a long term. Further, it is superior in maintenance characteristics, the handling characteristics, and the resource saving characteristics. It contributes to not only the golf population but also, resources-saving and environmental protection.

Abstract: A golf club includes a golf club head including a golf club head including a head body and a pair of balance adjustment portions formed in the head body, a plurality of weights detachably retained in each balance adjustment portion so that a three-dimensional gravity center position of the golf club head is adjusted, the weights serving as balancers and differing from each other in density and mass, and an IC chip accommodating portion which is formed in the head body or one of the balance adjustment portions to house an IC chip which stores information on a three-dimensional gravity center position of the golf club head.