Create Natural Shadows with Shadow Pencil Liner ◆ 3mm Core for Natural Shadow Lines A 3mm core diameter that easily creates natural shadows with a single stroke. For those who want to define the shadows under their eyes more clearly, we recommend layering with CipiCipi Secret Kiwami Liner S. ◆ Highly adhesive formula that resists smudging* ◆ Waterproof formula that is resistant to sweat and tears I am selling this because the color didn't suit me. I have used it about twice.