Diplomat easyFlow large-capacity ballpoint pen refill

The writing quality of the easyFlow large-capacity refill speaks for itself, so here are a few technical details: line width 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. Thanks to the very good open storage quality, the refill remains ready to write for a long time.