Long-wear dual-ended creamy eye shadow pen. For what type of makeup? Eye Duo Smoker, the new eye shadow pen comes with a creamy texture for an easy, perfectly controlled smoky look. How to use it? This double-ended eye shadow pen consists of two creamy shades, with different effects for two complementary uses: - One side has a dark shadow to intensify and contrast; - The other side has a lighter iridescent shadow to highlight.