TWSBI VAC 20A Ink Bottle – Red Upper cap made for TWSBI Vac Mini fountain pen. Middle cap made for TWSBI Vac700 fountain pen. Lower cap made for all fountain pens. Lid is interchangeable with the Diamond 50 Ink Bottle
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TWSBI VAC 20A Ink Bottle – Blue Upper cap made for TWSBI Vac Mini fountain pen. Middle cap made for TWSBI Vac700 fountain pen. Lower cap made for all fountain pens. Lid is interchangeable with the Diamond 50 Ink Bottle
TWSBI VAC 20A Ink Bottle – Black Upper cap made for TWSBI Vac Mini fountain pen. Middle cap made for TWSBI Vac700 fountain pen. Lower cap made for all fountain pens. Lid is interchangeable with the Diamond 50 Ink Bottle