All good putters have a routine they stick to and nearly all good putters have a distinguishable line on their golf ball that they point towards the hole.
By marking your ball with the Ball Line Marker you will be able to emulate the good putters and ensure you are set up square with the target. You will also be able to ascertain on what stroke you have put on the ball by watching the roll of the ball - you will be amazed on how many more putts you will get.
Good Golfing & Stay in the Zone