What is a filbert paint brush?

A filbert paint brush features an oval-shaped bristle head that combines the characteristics of both flat and round brushes. This unique shape allows for versatility in painting, making it suitable for creating softer edges, blending, and detailed work. The filbert brush is commonly used in various painting mediums, including oils, acrylics, and watercolors, and is favored by artists for its ability to produce a range of strokes and textures.