Profit Brush DE Mannen

By holding the pen tip upright you can write thin lines, and by holding the pen tip flat you can write thick lines; you can freely change the thickness of your lines by changing the writing angle.
It has the same body as the Profit, but is overwhelmingly popular because it is easier to hold and write with than a brush.
The 55 degree pen tip angle is recommended for those who write with the pen upright.