Abstract: A golf training aid for developing a golf swing of a golfer is described. The golf training aid has a shoulder strap adapted to be worn by the golfer around the shoulder of one arm, and an elbow member adapted to be worn above the elbow of the opposite arm. When worm a portion of the shoulder strap passes in front of the golfer where a coupling structure couples the shoulder strap to the elbow member such that the arms are positioned in front of the golfer's body. The golf training aid is adapted to maintain a substantially constant distance between the shoulder and the opposite elbow of the golfer during a golf swing, thus facilitating synchronization of proper arm position with rotation of the body throughout the golf swing. Typically, the shoulder strap and elbow member are adjustable, and the coupling structure permits decoupling of the shoulder strap from the elbow member to promote efficient use of the present invention.