Use the black side for your brush calligraphy lettering and the gray side to add shadow!
The Fudenosuke Brush Pen works great for your lettering in your bible with its elastic brush. Great for for calligraphy, sketches, journaling notes, zentangle, hand lettering, etc.
The line width varies from very fine to broad by varying the pressure exerted on the tip.
The ink is water based with color pigments.
Colors: black & gray