A billiards ball numbered 13 rests on a deep blue felt surface, rendered in bold geometric forms with a soft shadow beneath it. A wooden cue and single white cue ball complete the sparse composition, creating a clean, graphic study in primary colors and minimalist restraint. 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.