The Line-M-Up Ball Alignment system provides marking options allowing you to sink more putts, hit more fairways and save strokes instantly. It provides you with a visual guide when putting, when a good stroke is made, the line on the ball appears straight as it rolls. When poorly struck, the line will seem to wobble, when a pure stroke (no wobble) with the proper speed misses the hole, you can identify a missed read to improve your green reading skills.Features:-Improves putting accuracy -Improves stroke and green reading ability -Multiple marking options-Includes sharpie brush pen

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