Sakura Ballsign iD Gel Pen Refills

These gel pen refills are compatible with Sakura Ballsign iD Series in store: Sakura Ballsign iD PLUS Gel Pen - Silver Metal - 0.4 mm and Sakura Ballsign iD PLUS Gel Pen - 0.5 mm.
Ball diameter: 0.4 mm / 0.5 mm
Ink colour: Pure black, night black, forest black, Mocha Black, C.assis Black, Mysterious Black.