Two sleek black cats with distinctive white eye masks sit facing each other, their bodies silhouetted against swirling geometric shapes in teal, yellow, and orange that suggest movement and mid-century modern artwork sensibilities. Thin line work and abstract curves flow around the figures, creating a playful composition that captures the stylized elegance and retro energy of atomic-era illustration. 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.