• Rollerball with exchangeable One Change cartridge
• Line width approx. 0.6 mm
• Box of 5 units
• Cartridge with Ultra-Smooth tip for the best writing experience
• Waterproof according to ink standard ISO 14145-2
• Super-Flow-System for consistent ink flow
• Quick-drying and smudge proof
• Cap-off ink does not run dry even if the cap is removed for 2-3 days
• Ergonomically rubberized surface
• High-quality metal clip
• Each pen equipped with 2 cartridges One Change
• Produced CO2 neutrally
• Made in Germany