| 摘要 |
<p>A trainer device for a golf club comprises an elongate sighting arm (11). The sighting arm is removably attached to the golf club and includes a sighting arm (11) which extends forwardly of the golf club head along a line generally perpendicular to the shaft of the golf club. This line lies in a generally vertical plane which passes through a predetermined location on the club head, e.g. the centre of the club head.</p> |
