Nested squares in orange, green, blue, and pink layer across a black grid in a repeating geometric pattern that fills the entire composition. The bold, flat colors and concentric rectangular frames create a hypnotic rhythm with a distinctly mid-century modernist sensibility, evoking retro op-art energy through pure color and mathematical precision. 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.