By adopting a super cap pressurizing method, simply press the tip into the pressure hole on the cap head for a few times to produce smooth ink. It can also be pressurized only when needed, making it easy to adjust the ink output. ● You can fix it without pressing the axis. The tip uses a ballpoint pen tip so you can adjust the details like a writing instrument. The ink color matches the brown envelope, so the correction area is discreetly and you can eliminate any waste caused by writing.