One side of the Andmetics BROW Brush is equipped with a brush that allows you to perfectly shape your eyebrows or eyelashes. Use the brush that forms the other side of the Andmetics BROW Brush to apply your eyebrow products to your eyebrows. This brush is perfect for setting the eyebrows with BROW powder. This looks much more natural than using a pen. The brush is made of high-quality synthetic hair.