Product Features: A139 Detail Eyeliner Brush, The hair is made of horse hair, which is softer and more comfortable on the face than ordinary horse hair. The brush type is small and exquisite, and the exposed hair is only 3mm, which is a rare small brush head on the market. It is suitable for detailed eye makeup such as the inner and outer corners of the eye, as well as the eyeliner at the root of the eyelashes and the lower eyeliner.