EyeLine Golf Putting Plane Alignment System. All good putters have an accelerating stroke.
Good touch on the greens demands a stroke that is accelerating through the ball. The EyeLine was created to help with this good habit. There are holes behind the slot for the ball. When you place a tee in one of the holes, it provides a restriction to your back swing and forces you to accelerate through the ball.
This is a drill to help you learn to accelerate. As you do this drill, pay attention to the change in direction of the putter. A smooth transition combined with an accelerating stroke is Gold!
BUY: Ernie Els Golf Swing Ball