Diplomat Easyflow Ballpoint refill.

The writing quality of the easyFlow refill speaks for itself, so here are a few technical data: line thickness M, stainless steel tip 1.0mm, high writing performance: writing length 3000 meters, altitude stability up to 4000 meters, temperature stability up to 40 degrees Celsius. Due to the very good open storage quality, the refill remains ready to write for a long time.