Use for golf practice off standard tee or golf matte. Start out hitting 6 to 12 balls and return to normal golf balls to improve both distance and ball flight. Proper contact must be made to get any lift to the ball. Improper contact will keep ball very low to the ground, approximately 6-12 inches. Gives instant feedback to players. Safe for all clubs. Size of a normal golf ball. Approximate weight of a standard golf ball.