Abstract: A supplementary structure of swinging a golf club comprising a soft fixing element of elbow, its two ends connecting with a soft clip and center hanging belt each by connecting belt, by way of hanging belt around the neck of users to make fixing element of elbow between two elbows in front of the chest of users; clips under the armpit of users to make two elbows fixed on two ends of fixing element of elbow and the posture of swinging a golf club is formed into a triangular state.

Abstract: A golf water-impregnate force practice device comprised of a handle, a connector, and a transparent container. Since the transparent container is filled with water to a level totaling 60 to 80 percent of its capacity, the static equilibrium of the controlling water level as well as the force of release are observable to achieve a proper and effective golf ball striking practice tool.