Patent ID: 7819762

Claim:
A method of enabling a user to obtain a correct downswing plane and supination of the user's wrist during, comprising the steps of: placing a one piece semi-sphere ball on the ground, golf mat or tee, the semi-sphere ball having a radial portion and a flat face; orienting the flat face of the semi-sphere ball in a manner that the flat face of a golf club will make contact with the flat face of the semi-sphere ball, when the golf club is swung by the user, allowing the user to swing the club; the user matching the flat face of the golf club with the flat face of the semi-sphere ball at impact, so that the semi-sphere has a trajectory as fade, draw or straight shot; wherein, the radial portion of the semi-sphere meets the flat face of the semi-sphere at a continuous edge; the radial portion has a maximum diameter of from about 3 to 6 cm; and the flat face of the semi-sphere has a diameter of from about 2.5 to 5.0 cm.