TWSBI Go Fountain Pen in Clear Demonstrator Color__Matte Black__parker-sonnet-matte-black-gt-rb-rollerball-pen • Nib: Stainless Flex Steel

• Nib: Stainless Flex Steel

Includes one black cartridge and one converter

Filling System: Piston Filling Mechanism

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

Ideal for all standard paper

TWSBI Go Fountain Pen in Clear Demonstrator Color__Matte Black__parker-sonnet-matte-black-gt-rb-rollerball-pen • Nib: Stainless Flex SteelTWSBI (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