Review on 🏌️ Enhance Your Putting Performance with the GoSports Golf Putting Alignment Mirror – Standard and XL Training Aids for Improved Accuracy by Alonzo Weaver

Works well but strip on ball or long steel ruler is all you need. The idea is to hit the ball with the clubface perpendicular to the ball and in the desired direction of travel. You can practice putting the ball on a long steel ruler - if the ball stays in a straight line, you're done. Or use the golf template tool to place a stripe all the way around the center ball and adjust everything so that the stripe is up and facing the target. If the ball rolls in such a way that the line stays straight and doesn't wobble, then you bet correctly.