The Pelikan 4001 Black Pen Refill Pack (6 cartridges) provides the intensity and sobriety of a deep black tone for fountain pens. This pack contains 6 short cartridges of Pelikan 4001 ink with high-density black pigmentation, ensuring a constant flow and quick drying on paper. The 4001 black ink is resistant and does not fail during writing. It is the ideal choice for writing exams, official documents, diaries, and office work that requires formality.