Packed with black pigments and creamy oils, this Black Primer glides onto your lashes depositing a smooth rich layer of black color + adhesive styling gel. It creates an ultimate volumized base for Step 2 Fiber Mascara. Filled with 20 x more lengthening fibers and supercharged with even more intense black pigments, this Step 2 Fiber Mascara will take your lashes to extreme lengths. No Falsies. No Extensions. Just Fibers! (vs superstar original). What Are Fibers? When brushed across your lashes, Fibers are like strong flexible little hairs that instantly extend the lash length. Typically, 1 – 4 mm long, fibers deposit smoothly along your lashes, mimicking the look of your lashes and helping to create a long lash look.