Keep your Glow Writer™ pen producing sharp, clear markings with these high-quality replacement nibs. These nibs are designed to be the perfect replacement for a worn-out or damaged pen tip, ensuring you can continue to accurately label your autoradiography films and other items. Simply swap out the old nib to restore your pen to its original performance. Key Features & Benefits Restores Pen Performance: Easily replaces a worn or frayed nib to restore the Glow Writer™ pen's ability to create crisp, fine lines. Easy to Replace: The nibs are designed for a simple and quick replacement process, minimizing downtime. Maintains Marking Clarity: Ensures your phosphorescent markings remain sharp and clear for accurate gel and blot orientation. Essential Accessory: The perfect consumable to have on hand to maintain the longevity and performance of your Glow Writer™ pen.