OPUS 88 Green Demonstrator with Black Nib《Medium》 leuchtturm The more you use the

The more you use the notebook

Back panel: 3 wide exterior pockets + one full-length slip pocket

zipper cases

Cobalt Blue

OPUS 88 Green Demonstrator with Black Nib《Medium》 leuchtturm The more you use theThe Green Demo from OPUS 88 is a traditional dropper fountain pen with a clear acrylic body and comfortable weight distribution for easy writing. The knob at the end adjusts the air pressure and ink flow, controlling ink output and airtightness. The pen body and grip can be easily unscrewed for cleaning and refilling. Based in Taiwan, Opus 88 pens has masterfully engineered their pens to serve in both form and function, as well as reflect the artistry