A unique feature of squirrel is it's ability to hold huge amounts of color, which is such a boon to watercolor artists working on a grand scale. By
Comparing Squirrel Mop Brushes — Stephen Berry Art
Original France Raphael 802 Mixed squirrel hair Watercolor brush French style Mop brush Gouache brush Professional Art supplies
Pro Arte Series 45 Sablesque Traditional Wired Mop Head Brushes
Paul Rubens Professional Watercolor Paint Brush Wash/Mop Round Squirrel Hair Paint Brush for Fine Detailing Acrylic Gouache Oil
Pro Arte : Renaissance Squirrel Mop Watercolour Brush Size 2
Pro Arte Renaissance Substitute Mop Brush - Series RSM
Jackson's : Raven : Synthetic Brush : Mop : Size 0
Pro Arte Renaissance Squirrel Mop Brush Series R
Pro Arte Stephen Coates Foliater Brush