What it is: A multipurpose and dual-ended eye pencil in a propel/repel component with brush applicator.What it does: The formula can be worn as an eyeliner, eyeshadow or as a primer to make powder eyeshadow colors more intense. How to use: Apply the shade of your choice to eyelid or line your eyes. Replace cap and flip. Blend desired area immediately for most blendability, replace cap and you're set for all day wear.