The Parker black ballpoint pen refill M 1950369 guarantees an extremely smooth and comfortable writing experience with its medium (M) tip. Containing high-density black Quinkflow ink and a 1.0 mm ball, this Parker ballpoint pen refill ensures continuous, uninterrupted lines from the first to the last centimeter. The deep black color offers exemplary legibility. It is the ideal refill for intensive use in the office, university, and for signing.