Precision Alignment This ball marker pen helps improve accuracy by drawing clear alignment lines on your ball, supporting better aim and consistency on the green. Complete Accessory Features a convenient hang hook for attaching to keychains or neck ropes, making it compact, portable, and always accessible during rounds. LongLasting Ink Performance Uses quickdrying oily ink that is waterproof and faderesistant, providing visible marks that withstand various weather conditions and repeated use. Quality Construction Made from wearresistant plastic materials, this lightweight marker (about 6 g) measures 90 x 12 mm and is built to last through countless games. Use scenarios On practice greens, use the alignment lines to guide your putts and improve aiming accuracy. During rounds, attach the marker to your bag or keychain for quick access and easy marking between shots. In varying weather, rely on the waterproof and faderesistant ink to keep marks visible throughout the round or practice session.