A vintage patent diagram illustrates the dimpled surface and cross-section of a golf ball in precise technical detail, rendered in grayscale with fine line work and hatching. The composition is vertically organized with multiple spherical views and sectional drawings, capturing the methodical aesthetic of early scientific documentation with authentic aging and texture throughout. Printed to order on a soft, absorbent mat with a no-slip backing, ready underfoot the moment you step out. The kind of art you don't expect on a bathroom floor.