This is the golf swing training club with a gyroscope built into the head that keeps the clubface on-plane, encouraging proper technique during your backswing, downswing, and release. Rick Smith, a leading swing coach for PGA Tour Major Champions, said "it's the only product that lets golfers feel what it's like to have a technically correct swing." The 20,000 rpm gyroscope's brass flywheel is aligned with the club face, actively resisting any motion that takes it out of plane with your body as you make the motion of striking a ball. The club encourages smooth takeaways and proper wrist alignment during backswings and helps you to drop your hands and club into the slot during downswings. It facilitates the hands reaching the impact point before the club head, squaring the club face with the ball, for smooth releases. The shaft is 32" from the end of the handle to the head. Specify Left- or Right-handed club. Requires six rechargeable AAA batteries. Not to be used with a ball.