Te TWSBI Go is made of transparent plastic, which provides a wonderful view on the inside of the pen, the cap and spring loaded mechanism.The pen’s character will change with every other color you fill it with.
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.
TWSBI has been manufacturing pen parts form many companies and decided to use the gained experience by producing it’s own pens under the TWSBI brand.