TWSBI Eco White and Rosegold fountain pen, transparant with steel nib and piston filling mechanism. The TWSBI Eco White and Rosegold is a special edition with the metal parts plated in rosegold
TWSBI Go fountain pen features a spring filling mechanism, what makes it very easy to fill your pen from your favourite bottle of ink. Simple put your nib in the ink as you would do with any other pen and press down the piston. Release to fill it.