How do we use this instrument?

"The pen makes its mark by being pulled and the ink is dragged out of the side of the instrument. The width varies by changing the tip of the pen. Using the pointed tip gives the chance to make small, fine letters. Working with the side of the tool, greater width strokes are possible.

Because the color is pulled out the side, there is greater inconsistency to the edge of the letterform. Add a rough-textured paper and the result is an even coarser edge. Often, splatters appear on the paper as the color is flung out when the pen is drawn across the uneven surface." (Bliblioforge.biz,2013)