What it is: A small, precise angled brush. What it does: Ideal for use with the Super-Saturated Eyeliner, this brush is designed for use with highly pigmented color products. Extremely versatile, it offers the control to draw razor-thin lines or bold, thick lines. Diameter variation in the synthetic bristles provides more surface area to pick up and lay down colorful products. What else you need to know: This brush is cruelty-free, vegan, and eco-friendly. The soft, flexible bristles are made from a material derived from recycled PBT plastic bottles. Synthetic bristles resist bacteria, making this brush easy to clean.