TWSBI Go Fountain Pen in Clear Demonstrator Color__Matte Black__parker-sonnet-matte-black-gt-rb-rollerball-pen Filling System: Piston Filling Mechanism

Filling System: Piston Filling Mechanism

Ideal for all standard paper

fluid lines for journaling

Includes one black cartridge and one converter

Noodler's Ink - Piston Fill Flex Nib - Fountain Pen - Clear Demonstrator:

TWSBI Go Fountain Pen in Clear Demonstrator Color__Matte Black__parker-sonnet-matte-black-gt-rb-rollerball-pen Filling System: Piston Filling MechanismTWSBI (commonly pronounced "twiz bee") continues to push the limits of their designs with the most affordable pen with a unique, easy to use filling system that makes inking up quick when you're "on the GO." The TWSBI Go has an all resin body and clipless cap that allows the writer an unobstructed view into the inner workings of the pen. Instead of the piston mechanism on most other TWSBI pens, the Go has a spring loaded plunger mechanism that sucks