ARTIST PAINT BRUSHES - Professional Quality Red Sable (Weasel Hair) Mix, Long Handle, Filbert Paint Brush Set - Ideal for Acrylic Painting and Oil Painting, Watercolor Painting and Gouache Color Painting. - The Natural Characteristics of the Red Sable Hair (weasel Hair) Offer Excellent Liquid Holding Capacity and an Easy, Smooth Flow of Paint. The Fine Filbert Head Paintbrushes Have a Luxurious Feel and Excellent Durability, Whilst Good Shape Holding Properties.