The tip measures 12 mm in diameter

This marker is filled with FLUX black FX

and Berlin

The warm buff mid-tone shifts the energy of colors applied on top — cool tones pick up warmth

so your marks stay bright and don't fade even when they're sitting outside

ballograf epoca p ballpoint pen dark blue Furious The tip measures 12 mmBallograf's Epoca P in dark blue is an engineering landmark from 1961 that still outperforms modern alternatives. Created in response to complaints from Swedish Postal Service workers about hand fatigue, its faceted barrel design became the standard others try to copy. Hand assembled in Sweden with precision and care. The smooth writing experience comes from premium oil based ink formulated to resist light and withstand extreme climates. A single