The image is a close-up of a long, thin, black line that appears to be a microscopic view of a plant stem. The line is elongated and has a smooth, curved shape. It is slightly curved at the top and bottom, with a slight curve at the end. The background is a light grey color, and there is a thin white line on the right side of the image. The image is taken from a top-down perspective, looking down on the stem.