Russian blue squirrel hair is of the highest quality and holds a large volume of water which makes it excellent for mop and wash techniques. * Generously sized and hand shaped, its unique point allows for full strokes across the paper. * Cats tongue wash offers the perfect combination of a flattened ferrule and oval tapering. * For watercolor, gouache, silkpainting or fluid colors. * Certified green manufacturing with sustainable wood handles. made in germany.