OPUS 88 Transparent Demonstrator《Medium》 gansai The back has markings at

The back has markings at 1mm intervals along the long edge

Epoxy-coated metal body

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Store in a cool

OPUS 88 Transparent Demonstrator《Medium》 gansai The back has markings atThe Transparent 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