TWSBI Eco Cosmos with Onyx fountain pen Brand specific this pen is a true

this pen is a true testament to Montblanc's pioneering spirit

The new Pocket Crystalized Titanium offers an integrated Delrin insert in the cap

Temporarily unavailable

blending the smooth precision of the game with a playful touch

gently pull it out while turning to avoid dislodging the nib mount

TWSBI Eco Cosmos with Onyx fountain pen Brand specific this pen is a trueDe TWSBI Eco is made of transparent plastic, which provides a wonderful view on the inside of the pen, the cap and piston mechanism are made of blue green swirl color plastic with black nib and clip. The pens character will change with every other ink color you fill it with. The pen is easy to take apart for servicing or cleaning if required. A key and silicone grease are provided with the pen.