If you do, you can draw with a light touch, tightly adhere to the skin in about 10 seconds. It is a waterproof pencil eyebrow that keeps beautiful in every scene. How to use: Pencil core 1-2 mm and draw one by one. Do not put out the core more than 2 mm. If it puts out too much, the core could break. If you fail to draw, immediately rub it with the brush attached.