This fountain pen cleaner set is for thorough cleaning of fountain pens and nibs. Whenever fountain pen ink has dried up, or when you change the ink color, it is necessary to thoroughly clean your fountain pen. This set is an indispensable tool for cleaning and maintaining high-quality fillers and ensuring an unhindered ink flow. The fountain pen cleaning fluid effortlessly and thoroughly removes even dried-in ink residues while being gentle on ink guides, nibs and seals.