Cake eyeliner pen is powder, which can be divided into water stain and non water stain. The appearance of the cake shaped eyeliner pen is similar to the manufacturing process of the compressed eye shadow, but because it contains a high proportion of pigments and adhesives, it will form frost. It is an improved new product, replacing the traditional eyeliner pencil liquid, and it is also a product used to outline the outline of eyeliner pencil. Use a brush or diagonal pen to outline the outline of the eyeliner pen.