Twsbi Diamond 580 Iris
TWSBI Diamond 580 is perhaps the most famous fountain pen model of the TWSBI house.
Completely transparent, with iridescent finishes and nib, it stands out for its excellent value for money and the wide choice of nibs.
It is also one of the cheapest pens on the market to have piston filler.

One of the features most appreciated by enthusiasts and not, is the ability to disassemble piece by piece the entire structure of the TWSBI Diamond 580. This operation, which greatly facilitates the cleaning and therefore the longevity of the pen, is possible thanks to the tools that are supplied inside the package and together with the pen.

Dimensions Twsbi Diamond 580 Iris
Closed Length:14.1cm
Length when opened with hooded shod: 17.8 cm
Pen diameter: 1.3 cm