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It’s for this reason that Kolinsky sable-hair brushes are so hard to come by here in the U.S. Yes, you can find them from time to time on Amazon, as I have.
Narrator: Making a Series 7 kolinsky sable watercolor brush isn't easy. The largest-size brush can take almost a week and a half to make. You can pick up a cheap, synthetic brush for under $2, but ...