Bold black and white wavy lines flow across the composition in rhythmic, undulating patterns that seem to shift and ripple like liquid marble or topographic contours. The high-contrast strokes create an optical motion, with alternating bands of solid black and negative white space generating a hypnotic, almost three-dimensional effect. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.