The piston is pressed against the compression chamber with each click to send compressed air to the refill (core) and eject the ink.
You can write clearly even when you have to write fast, with a pen nib up, or on wet paper.

 

The elastomer-coated surface of the barrel ensures a secure hold even with wet fingers or a hand in a glove.
*Acrylic resin coating is used for the transparent barrel.

 

The strong and flexible wire clip opens wide. It securely holds any material from a sheet of printing paper to thick objects.

 

The total length of 122 mm is suitable for carrying around. This pen is about 20% shorter than a normal ballpoint pen for office use (about 150 mm) and suitable for writing in a small space or a crowded place.