Princeton's Refine Brush has two size Fans.
Refine™ – Natural Bristle, Long Handle
Interlocked-bristle brushes with flagged tips (split ends) to control and hold more color, the Refine™ brush line combines quality, value, and variety in shapes and sizes to meet the creative needs of all oil and acrylic painters.
Natural Chunking Bristle
Natural Flags for color holding and precision
Interlocked for control and shape retention
Widest assortment of shapes and sizes