The pens in this set have a 15 mm square tip

Ideal for preserving the raw look of your graffiti canvases or art installations

and it's the same archival water-based black pigment used across the line — waterproof and lightfast

and 6B — one pencil of each grade

3 mm leads under sustained writing pressure

parker jotter original black ballpoint pen medium Os Gemeos The pens in this setTip: 1. 0 mm medium ballpoint 0. 5 mm line width tungsten carbide ball Ink: Parker Quinkflow immediate dry, skip free, smudge resistant Refill: Compatible with standard Parker ballpoint and gel ink cartridges A design icon since 1954 glossy black resin lower barrel paired with a brushed stainless steel cap and chrome arrow pocket clip. The push button advance delivers a crisp mechanical click with every deployment. Lightweight, scratch resistant, and