TWSBI GO fountain pen with a completely new filler system.
The TWSBI GO is equipped with an innovative piston mechanism. This fountain pen can easily be filled with one hand.
The ink reservoir is inside part of the section as well as the barrel, which needs to be unscrewed to fill the pen.
The spring is also inside the barrel, which holds the plunger at the top of the reservoir-unscrew the barrel, place the nib in the ink bottle, push down the plunger, and the spring does the rest.
The cap on the TWSBI GO fountain pen is push-on.
The pen has a steel nib, made by Jowo.
Please note : ink is not included