Anastasia Beverly Hills A3 Pro Brush - Firm Shader Brush is a small, dome-shaped eyeshadow brush with densely packed synthetic fibers that is ideal for applying and blending eyeshadow. The soft, densely packed fibers on this professional-quality makeup brush deliver maximum color payoff and smooth application. The round shape fits perfectly onto the lid when packing shadow and the tip of the brush fits perfectly into the crease for definition, allowing for precise control when creating detailed eye makeup techniques.