Stack on infinite layers of volume + length with MACStack Mascara. This never-before-seen endlessly buildable, clump-resistant formula gives you customisable volume from natural to next-level, along with instant length. Mirror your unique mood and reflect your individuality with two brush sizes tailored to your lashes and look. MACStack Mascara features the Superstack Mega Brush in Black and Chestnut Brown that's ideal for longer or upper lashes, while MACStack Micro Mascara features the Superstack Micro Brush that's ideal for shorter or lower lashes. Magnify your eyes and enlarge your lashes with this major mascara must-have!