**Feature** Permanent， pigment ink Snap tight cap helps your ink last longer Ideal for sketching and drawing Size:Pack of 1 Pentel Arts Sign Pen with Pigment Ink - Black Ink 1-Pk Pentel Co.， Ltd. is a privately held Japanese company which produces stationery products. The name is a combination of the English words pen and tell. Pentel is also the inventor of non-permanent marker technology.