A yellow tennis ball floats at the center of a geometric composition, overlaid with intersecting triangles in deep blue, forest green, and muted gold against a cream background. The clean lines and flat color blocks evoke a mid-century modern sensibility, while the layered circles behind the ball suggest motion and depth in a deliberately restrained, graphic style. 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.