A fast and easy way to learn how to line up your putts. In the past, players sometimes marked a straight line on their ball that they could line up with the hole. This plastic template includes the missing half of the equation - the face position. By marking a line perpendicular to the target line, the player can be assured (provided they set the target line correctly) they are aiming at the hole by merely squaring the putters face to the vertical line on the ball.

Can be used on any ball. Mark a few balls for friends as a gift. It's even legal for tournament play - yes, again - it is legal for tournament play! It's like having someone behind you lining up your putts on every hole!