A wood golf club head includes a golf club head cavity, a steel ball within the golf club head cavity, and a permanent magnet plate attached to the back side of the club head cavity whereby upon hitting the golf ball, the steel ball moves and hits an inner sweet point corresponding to a sweet point of the front surface face of golf club head, so that the struck ball will fly in a straight direction and in a longer distance compared with an expected golf ball distance.

The steel ball 20 is provided with a size and weight similar to those of a conventional golf ball 22 (FIG. 4). However, the size and weight of the steel ball 20 can be adjusted depending on many factors such as a woman's golf club.

The golf club 10 having the golf club head 12 according to the present invention operates as follows. As shown in FIG. 4, when a golfer swings forward (not shown) and hits a golf ball 22, the golf ball 22 strikes a sweet point, for example A, B, C, of the front surface face 13 (see dotted line golf ball). At this time, simultaneously, the steel ball 20 moves from the permanent magnet plate 18 to an inner sweet point of the interior of front surface face 13 within the golf club head cavity 21.

Accordingly, if the golf player hits the golf ball 22 at the "C" sweet point, at this time, simultaneously the steel ball 20 hits behind the "C" sweet point. Therefore, the golf ball 22 will fly in a straight direction so that the golf ball 22 may be on the fairway and also, a golf ball distance is longer than the golf ball 22 can fly under original circumstances. The air aperture 19 functions as a kind of air passage to the atmosphere in order to freely move the steel ball 20 within the golf head cavity 21 during operation. Thus, the golf club 10 according to the present invention can enlarge the hitting area of the front surface face 13 so as to hit the golf ball 22, directs the golf ball 22 in a straight direction, and extends the golf ball distance compared with that in the original situation.