A golf swing aid is attached to the shaft of a golf club. The aid comprises (a) a sleeve having a longitudinal slot defining a longitudinal axis for frictional attachment to a shaft of a golf club; and (b) a rod extending outwardly from the sleeve opposite the longitudinal slot and forming an angle of about 40 to 80 degrees to the longitudinal axis of the sleeve. When the club is swung optimally, the rod is hidden beneath the shaft when the ball is contacted.