This eyebrow pencil belongs to the extra-hard refill. Because the refill is super hard and durable, it is easy to color, the color is smooth and natural, waterproof and sweat-proof and not easy to smudge, ensuring your eyebrows stay flawless all day. It can draw eyebrow lines and make eyebrows look natural. It can be used as a tattoo It is a special positioning eyebrow pencil for embroiderers and stylists, so it is loved by makeup artists, tattoo artists and stylists. Widely used in studio theaters, makeup schools, film and television crews, and tattoos. So everyone calls it a hard refill drawstring pen.