What it is: A synthetic-bristle brush with a rounded, flat head.What it does: This brush is designed for the fast, flawless application of eyeshadow. It's perfect for creating a fast, simple smoky eye. How to use: Apply eyeshadow with a light, tapping motion for an intense look or with a stroking motion to smudge or blend. It's perfect for creating smoky eyes, intensifying makeup, smudging a pencil line or to create a highly precise contoured eye look. Synthetic hair