Abstract: The present invention provides a golf club that can be tailored to the user using various kinds of blocks. A block (13) is coupled to the golf club, the block (13) having a recessed groove (14) formed on the upper surface thereof to be recessed inward and having a fitting groove (12) formed on the lower portion thereof so as to protrude downward. Even between different blocks (13), the recessed grooves (14) and the fitting grooves (12) can be coupled to each other. When two or more blocks (13) are coupled, the recessed grooves (14) and the fitting grooves (12) of the two blocks (13) can be fitted, and screws can then be fitted from the recessed grooves, thereby coupling the two blocks (13).