Having burst on the scene in 2007, the Dave Pelz Putting Tutor is an oldie but goodie. Putting guru Dave Pelz engineered the 9-inch-long plastic aid with the belief that every putt starts as a straight one. At address, check your face alignment, and a white line gives you a visual cue of your intended line. The Putting Tutor also trains you to contact the ball with a square face, as a pushed or pulled putt careens into marbles perched on the far end, causing them to ricochet off the board.
Once you set up with a square face and consistently stroke on-line putts, it’s time to focus on speed and green reading. However, if misses continue, try setting the Putting Tutor on a different aim line. One more thing: The product works well both indoors and outdoors thanks to metal weights that prevent it from shifting.