A vintage patent diagram illustrates a golf ball and its technical specifications across five detailed figures rendered in white lines against a solid black ground. The composition centers on two cross-sectional views of the dimpled sphere at top, followed by four schematic drawings showing the ball's structural geometry and measurements in the characteristic style of early 20th-century patent documentation. 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.