Rembrandt watercolor brush, Series 110, made of natural Kolinsky red sable hair. Traditionally, brushes have been made from natural animal hair, with Kolinsky red sable being the most prized due to its water and pigment retention and its flexibility. Rembrandt watercolor brushes are crafted with the utmost care and traditional artistry; each hair bundle is manually shaped and set into a nickel-plated brass ferrule.
