Bobbi Brown Kohl Cake Liner

I went to Nordstrom to get help from Diron Carr, Bobbi Brown counter manager. I couldn't decide whether to purchase Bobbi Brown's new Kohl Eyeliner Pencil or her Kohl Cake Liner ($22). They are both limited editions, but I only wanted one. How many black eyeliners can I use? Kohl Cake Liner was inspired by old-school cake eyeliner. This rich powder formula can be applied dry or damp to create