The video shows a person's hand holding an orange fish-shaped eraser. The person is seen pressing the eraser onto a blue surface, causing it to leave an imprint. The eraser is then removed, revealing the fish shape left behind. The person repeats this process several times, each time leaving a new fish-shaped imprint on the surface. The person's fingernails are painted with a dark green polish, and there are small yellow dots on the nails.