The Tombow AirPress pen writes with black ink. The pen is equipped with a unique hydraulic system. This allows you to write anytime and anywhere: upside down, at temperatures down to -5 °C and on damp paper. Thanks to the rubber grip, the pen lies smoothly and firmly in the hand. With the clip you can attach the Tombow pen to papers, clothing or a bag. The casing of the pen is black in colour.