What it is: A synthetic-bristle flat eyeliner brush designed for effortless application of wet and dry eyeliner formulas.What it does: This brush is designed for eyeliner that needs to be pushed or stamped directly onto the base of your eyelashes to apply. NARS' brushes are designed for ultimate artistry. With high precision, high quality and high performance, they're expertly shaped from durable synthetic fibers and customized for use with all of François Nars's signature techniques. How to use: To cleanse your brush, dispense a small amount of gentle soap or brush shampoo onto the brush and rinse with water until it runs clear. Avoid wetting the brush handle. Gently reshape fibers after rinsing, then lay flat or hang upside down to dry. Synthetic hair Hypoallergenic Safe for sensitive skin Made in Canada