This unique Japanese calligraphy-style brush allows for precise, super-fine application that lets you create lines as small as one millimeter thickness!nCombined with a formula that dries super-quick (for a waterproof, smudge-proof application), this liquid eyeliner glides on smoothly without tugging or pulling.nThe brush applicator sweeps on a crazy-smooth line every time. Its formula is jet black and really opaque (AKA major definition). The tip is super skinny, letting you paint it on as thick or thin as you want.