One side of the Andmetics BROW Brush is equipped with a brush that lets you bring your eyebrows or eyelashes in perfect shape. Use the brush to the other side of the Andmetics BROW Brush is to bring to your eyebrow products eyebrows. This brush is perfect to put to the eyebrows with brow powder. This looks much more natural than using a pen. The brush is made from high-grade synthetic hair.