Professional Golf Ball Liner Markers Pen - Accurate Ball Marking: Provides clear and precise alignment marks on golf balls to support consistent setup and aiming. - Convenient Hanging Design: Includes a hang hook for easy attachment to a keychain or neck rope. Compact and portable for rounds on the course. - Fast-Drying and Waterproof Ink: Oil-based ink dries quickly on ball surfaces and keeps the alignment marks intact in damp conditions. The marks are waterproof and fade-resistant. - Durable Construction: Made from high-quality plastic, the pen is wear-resistant and built to withstand the rigors of the golf course for long-lasting use. - Practical and Versatile: Suitable for marking lines or symbols on golf balls with a simple, reliable application process. - Size and Compatibility: Compact design optimized for use on standard golf balls; designed for everyday golf use. Use scenarios - On the course: Mark your ball before each shot to maintain a consistent alignment reference and improve setup. - Practice and training: Apply marks on multiple balls at the driving range or practice greens to compare alignment changes and track progress over sessions. - Group play and tournaments: Quickly identify your balls in crowded situations by using a consistent marking system that is easy to apply and read.