It takes little in the way of tools to make a sumi ink wash painting. A good brush, paper, ink, and ink stone. I have collected around 30 sumi brushes over the years. While selling my paintings at a fine art show I came across the the custom brush maker Tracy Lebenzon. I bought the largest sumi brush he brought to the show. Amazingly this brush produces the finest line of any of my brushes. But just a fascinating is it also produces the fattest brush stroke of any of my brushes. The fine point made of synthetic fibers and can lay down a very narrow line. With a little pressure the line widens to a bit and with a lot of pressure the line is downright fat. It also looks like it came out of a studio frozen in time.