These are not regular watercolors. They are something in between sumi ink and watercolor combined into one pan.
Boku-Undo has been making sumi ink in Nara since 1805. The Ezumi series came from asking a simple question: what happens when you take the same soot that goes into traditional ink sticks and combine it with watercolor pigments and gum arabic? The answer is a paint that behaves like neither one alone.

Touch it with a wet brush and the color melts immediately. The soot particles move through the paper differently than pigment alone — softer, more spread, harder to control in the best way.
The Tan set is the pale palette, six quiet tones that carry greyness in their brightness. Pale red, pale yellow, pale green, pale blue, pale purple, pale brown. The colors that Japanese art has always known how to use: colors that suggest rather than declare.

The packaging dividers are made from kome-kami- paper produced from rice no longer suitable for consumption. Even the box is considered.

6 solid watercolor pans per set
Maker: Boku-Undo, Nara, Japan, est. 1805
Sourced from Sekaido, Tokyo