A detailed technical patent diagram of a double bass fills the composition with intricate line work and labeled components rendered in black ink on white paper. The drawing captures both the instrument's full body and numerous close-up details of its mechanical parts, creating a dense, schematic mood that celebrates the bass as an engineering marvel as much as a musical object. 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.