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. Use it thick and you get a deep, opaque shadow tone. Dilute it and the soot particles spread into the paper fibers, creating gradations that pure watercolor cannot replicate.

This is the Classic set-  six dark sumi tones, each with a different base: reddish black, yellowish black, greenish black, bluish black, purplish black, brownish black. They are not bright colors. They are the colors of shadow, atmosphere, and depth. The kind of palette that suits a certain way of seeing.

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