• Rollerball with hybrid conical tip for pleasantly soft writing
• Line width approx. 0.3 mm
• Box of 10 units
• Waterproof according to ink standard ISO 14145-2
• Super-Flow-System for consistent ink flow
• Large ink reservoir with level indicator
• Cap-off ink does not run dry even if the cap is removed for 2-3 days
• Ergonomically rubberized surface
• High-quality metal clip
• Made in Germany