TWSBI Eco Carrara and onyx fountain pen

This TWSBI Eco Carrara and onyx fountain pen has a white / grey marble like resin cap and piston knob, finished with onyx color coated metal parts.

The TWSBI Eco is made of transparent plastic, which provides a wonderful view on the inside of the pen. The pen’s character will change with every other color you fill it with.
For the adventurous people, the pen is easy to take apart for servicing or cleaning. A key and silicone grease are provided with the pen.