Main purpose The golf ball line marking tool adds precise alignment and identification marks. It helps you align shots and verify that your putter rolls true, while allowing you to apply unique identification symbols. Portable design Ultra-thin and compact, it stores easily in a golf bag without adding bulk. The pliers-style grip makes it easy to pick up the ball and draw straight, clean lines on the ball surface for clear markings. Multiple choices Includes 3 different golf ball line liners and 2 color line drawing pens. You can mix and match to add lines for swing or putting alignment. The markings help you find the correct angle and improve consistency. Slotted Alignment Kit The slotted alignment kit marks parallel lines on golf balls and enables a triple-track configuration. It marks both front and back surfaces, helping you create and identify your own ball track. Use scenarios - At the driving range or on the practice green, draw lines to visualize your swing path and check putter alignment. - On the course, apply unique marks to quickly identify your ball among others in play. - During training sessions, compare line accuracy across practice rounds to adjust aim and improve consistency.