TWSBI ECO Black Marble w/Bronze Fountain Pen ink 580 has improved the smoothness

580 has improved the smoothness of cap thread turning

No ink inside

do some coloring/shading in B

Simply unscrew the end cap

falling into obscurity

TWSBI ECO Black Marble w/Bronze Fountain Pen ink 580 has improved the smoothnessComes in EF, F, M, B, Stub1. 1 nib choices Colors: Creme Clear RoseGold Pen cap is able to post onto the back of the pen Piston Filler Fountain pen. Simply unscrew the end cap, dip into ink, screw back the end cap, and your done! Ready to write!! Pen cap has an inner cap to insure a perfect seal when stored away. Made for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker. Please note: Ink is NOT