Transparent refillable rollerball pen with J.Herbin converter Pen for painting and drawing on paper and other surfaces. Perfect for calligraphy and lettering techniques with incredible results. This pen comes with an ink converter. It also accepts international standard ink cartridges and having a transparent cylinder allows the user to see the ink color and the amount remaining in the cartridge. Sold without ink cartridge. Closed length: 158 mm. Brand: J.Herbin.