The Mitsubishi Uniball Air writes as lightly as air. The line width changes depending on how you hold the pen and the pressure you apply, allowing you to write characters with sharp edges as well as expressive lines with rich inflection.The pen's newly developed tip moves up and down in response to writing pressure, optimally controlling the flow of ink. This allows you to write clearly without applying pressure, and provides a comfortable writing experience with fewer smudges. The pen is very smooth and writes a varying line from .3 to .7mm. It's meant to feel similarly to using a fountain pen.
