Faber-Castell – Fountain Pen Ink Bottles – Black – 30ml Bottle Made with smooth experience in mind – like their fountain pens – these Faber-Castell inks are composed to prevent clogging and smudging when you\’re writing. This bottled ink is compatible with any fountain pen that uses a converter. 30ml glass bottle Permanent ink About Faber-Castell: Faber-Castell, founded in 1761, is one of the world\’s oldest and largest manufacturers of drawing materials, specifically known for their wooden pencils. Created by a cabinet maker, Kaspar Faber, its headquarters is in Stein, Germany. Faber-Castell takes great pride in providing the world with excellent drawing materials, while using sustainable practices in their manufacturing.