Thanks to the excellent quality of the oil-based refill, even when the cap is removed the ink does not dry up and thus the refill provides a steady flow for a long time. This refill is suitable for Diplomat and Retro 51 Ballpoint pens.
- Width of stroke: Medium
- Stainless Steel Tip: 1.0mm
- Writing Length: 3,000m
- Altitude Stability: Up to 4,000m
- Temperatire Stability: 40°C
