A set of colorful spiral notebooks is displayed in a row. The notebooks are arranged in a gradient of colors starting with black on the left, followed by green, pink, blue, red, and yellow on the right. Each notebook has a spiral binding and a visible spine with the brand name 'Pilot' and the number '2' on the black and green notebooks. The other notebooks have the brand name 'Pilot' and the number '2' on the spine, but the color of the spine is different for each notebook.