Purpose and key benefits Precise ball marking and alignment: creates straight, clean guide lines on golf balls to improve aim and putting consistency. Saves time on the course: the liner draws lines on the front and back of the ball without repositioning the stencil, reducing setup and frustration. Durable and portable: made from long-lasting material and designed to be small and lightweight for easy storage in any golf bag. What it does Acts as a combined golf ball marker, stencil and alignment tool that helps you mark consistent reference lines quickly. The transparent design lets you see the ball while aligning the stencil, ensuring accurate placement every time. Suitable for use with standard golf balls and common ball-marking pens or markers. Why you need it Improves putting accuracy by giving you a reliable visual reference for alignment. Ensures consistent practice and better transfer of training to on-course performance. Prevents mis-marking and repeated adjustments thanks to the ability to mark both sides without moving the template. Key attributes Function: line-drawing liner, ball marker stencil, and alignment tool in one compact item. Compatibility: works with standard golf balls and typical ball-marking pens. Size and weight: compact and lightweight for easy carrying and handling. Material and durability: constructed from durable material for long-term use. Visibility: translucent color allows you to see the golf ball while marking. Performance highlights Produces straight, clean lines for consistent visual alignment. Reduces setup time by eliminating the need to reposition the stencil between front and back marks. Portable design is convenient for practice sessions, rounds, and travel. Typical use scenarios 1. On the putting green: quickly draw a straight alignment line on your ball before each putt to confirm aim and follow-through direction. 2. Practice sessions and drills: mark multiple balls consistently when working on stroke mechanics or aiming drills so you can compare results without guesswork. 3. On-course identification and alignment: mark balls for easy ID during play and add alignment lines to speed routine setup for short game shots. What to expect in regular use A simple, repeatable marking process that supports better aim and consistent practice. A lightweight tool that stays in your bag and is ready whenever you need a clean, accurate ball mark. This product combines a durable marker, a precise stencil and a compact alignment aid to help golfers mark straight, reliable lines on balls quickly and consistently.