I use #10 on the top lid and #20 on the outer third of the bottom lid. It goes on reasonably smoothly, but I had trouble with it smudging. Eventually decided it was better to apply to the inner edge of the lid. It's pretty water resistant, but it seems like oily skin messes it up quickly. It is good that you don't need to sharpen it or anything, so that's convenient.
This eyeliner pencil stays smudge-free for a long time and emphasizes the eyes. Easy twist-up form. The included sharpener promises an even more beautiful finish to create natural looks by drawing a thin line from the inner eye to the outer corner and emphasize the eyelashes. To create a refined look, draw a thick line along the upper eyelashes and emphasize the outer eye line To make even more dramatic eyes, draw line on the lower eyelids as well. 0.3g.