Schneider One Change 1854 rollerball cartridge for Schneider One Change 1837 rollerball pens (part no. 1837), Schneider Breeze, Base Senso and Base Ball. Line width: approx. 0.6 mm, ink: quick-drying and smudge-proof, indelible according to ISO 14145-2. Ink contains preservative C(M)IT/MIT.