Derwent GRAPHIK LINE MAKER 3 Maker Sepia Set includes one each of the .1mm, .3mm and .5mm
These pens are similar to graphic pencils in that they create smooth free-flowing lines, yet they feature permanent pigmented ink. The ink is water-based and solvent-free. The Japanese nibs are lightfast and archival, and the barrels are clear for easy ink visibility. Both the marker tip and cap indicate the ink color. They are AP and ASTM certified.