TWSBI ECO Transparent Yellow Fountain Pen 580iris Each case comes with 5

Each case comes with 5 pen slots

Spring loaded piston filling mechanism

Improved grip and end barrel section compared to 540

Roughly the same height as an iPhone 5 when capped and stored away

TWSBI ECO Transparent Yellow Fountain Pen 580iris Each case comes with 5Comes in EF, F, M, B, Stub1. 1 nib choices Colors: Clear Turquoise 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