Princeton Summit Series 6850 White Synthetic Brushes were designed specifically for fluid acrylics but are also ideal for use with watercolors. They hold as much color as the best natural hair, release color consistently, and possess excellent points and edges. - Princeton Summit 6850 White Synthetic Brushes - Set of 4, Blick ExclusiveSummit Brush Set, SET OF 4 - This set includes four brushes in essential shapes and sizes, including a Size 1 Liner, Size 4 Round, Size 10 Round, and Size 1/2" Angle Shader, all with short handles. Designed for fluid acrylics, these brushes are also ideal for watercolors. They hold as much color as natural hair, release color at a consistent rate, and have excellent points and edges.