A bold rainbow curves across a light ground, its concentric bands arcing from the lower left in shades of golden yellow, orange, red, magenta, purple, blue, and forest green. The bands are evenly spaced and cleanly rendered, creating a cheerful, symmetrical composition that recalls midcentury optimism and graphic simplicity. 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.