Upgrade your writing setup with the Moonman P141 Sun Expedition Nib Unit. Featuring a striking gold-plated finish with exclusive Sun Expedition engraving, this replacement nib assembly delivers smooth ink flow, reliable performance, and an elegant writing experience. Designed specifically for the P141 fountain pen, the complete nib unit allows quick and easy installation for everyday writing, journaling, signatures, and calligraphy practice. Available in EF, F, and M nib sizes to match your preferred writing style.