Sigma Beauty – E40 Tapered Blending BrushThe definition of a classic, you’ll use this cult-favorite, fluffy SigmaTech fiber brush every day for eyeshadow application and blending. Our E40 Tapered Blending Brush is best used for softening harsh lines or applying a transition color to the crease. The E40 soft brush head will gently apply color, ideal for placing highlight products on the brow bone.