Grey Matters brushes are designed so that nothing stands between you and the canvas. Each Jack Richeson brush is carefully handcrafted so that you can do your best work. There are no distracting colors on the handles and the metal ferrules are non-reflective. This brush has synthetic hairs for acrylic painting and the handle is a neutral gray so you can focus on your artwork. Filbert brushes are a traditional brush shape; great for creating rounded flat strokes, defining edges and getting into tight areas.