TWSBI Diamond 580 Iris fountain pen Kaweco The Vacuum filling mechanism requires

The Vacuum filling mechanism requires you to pull back the knob

The Pelikan-characteristic material is slightly transparent

Rhodium plated cap

Adorning the top of the cap is an illustration of the snow-covered peak of Europe's highest mountain

14-carat gold nib

TWSBI Diamond 580 Iris fountain pen Kaweco The Vacuum filling mechanism requiresThe exact colors will be different on each TWSBI 580 Iris fountain pen. De TWSBI Diamond 580 is made of transparent plastic, which provides a wonderful view on the inside of the pen, the piston mechanism and ink level. The pens character will change with every other color you fill it with. The fountain pen details have a chrome trim and the plastic is facetted. For the adventurous people, the pen is easy to take apart for servicing or cleaning. A key