Two technical drawings rendered in white lines on a charcoal chalkboard ground show the mechanical components and assembly of a basketball hoop system, dated October 29, 1963. The schematic diagrams detail the apparatus from multiple angles with numbered parts and annotations, capturing the industrial precision of sports equipment artwork with the aesthetic of vintage 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.