I purchased LB-1 Ultra Light Brown and GY-1 Ultra Light Greige. I've been using Ultra Light Brown since the Double Line Faker, the product before the redesign. The tip is thinner than with Double Line Faker, making it easier to use. GY-1 Ultra Light Greige in particular is an eyeliner that can subtly and naturally create double eyelids and shadows around the under-eye bags. Because the tip is thinner, it requires frequent maintenance, but... I personally find it useful for drawing my eyebrows. I don't have any hair at the end of my eyebrows, so they disappear even when I apply makeup. Since this product is intended for the eye area, where makeup is prone to smudging, it lasts well and keeps the end of my eyebrows in place even if I can't touch up my makeup for a long time. This is not the manufacturer's recommended usage method, but please use it as a reference.