BR88. Raphael SoftAqua Synthetic Squirrel Watercolor Brushes, Quill/Mop.
This mop brush from Raphael is the perfect choice for washes, backgrounds, solid color blocks, and broad strokes. Unique synthetic squirrel SoftAqua Fibre bristles allow for exceptional water and pigment retention, so you can paint for longer without returning to your palette. Ideal for watercolor, ink, gouache, and tempera paints. Can be used with acrylics if they are diluted/watered down.