Procion is a concentrated powdered dye which, when added to water, produces exceptionally brilliant color ideal for all natural materials such as cotton, rayon, linen, silk, wool, paper, reeds and wood. Use it for a variety of applications including tie-dyeing, vat dyeing, batik, airbrush, hand painting, printing and spatter painting. Generally, this 2/3 oz. jar can dye more than five yards of fabric- about nine T-shirts.