A geometric grid of interlocking cubes creates an optical illusion of depth, rendered in shades of teal, slate blue, and cream that shift and recede across the composition. The precise, repeating pattern produces a mesmerizing three-dimensional effect that draws the eye inward, balancing mathematical rigor with a contemplative visual rhythm. 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.