In this short video, we fill up the Sailor Professional Gear King of Pen Winter Sky fountain pen in medium point using Sailor Manyo Nekoyanagi ink. This is how to fill up a converter-filling fountain pen. If you'd like to see a short how-to on filling a piston-filler, or vacuum-filler, please let us know in the comments and share this with friends that are looking to get started with fountain pens.
