FEATURES The Stroke Meter helps you create the proper stroke length & Make strokes to match the same color block on both ends A balanced stroke – equal length back and through - eliminates jerky motions coming into the ball. It also prevents a stroke that is decelerating into impact. Both of these tendencies create inconsistent distance control. The goal of the Stroke Meter is to help you develop a stroke that is the same length back and through, at a consistent rate of acceleration. The color blocks on the board let you see equal distances back and through. Simply swing the putter to the same color on both sides of the ball, practicing different distance putts.