The image shows a close-up of a piece of sand with a ruler on the right side. The sand appears to be a light beige color and has a rough texture. On the left side of the image, there is a small indentation in the sand. The indentation is made up of small, irregularly shaped lines and dots. The ruler has a black and white striped pattern on the top right corner and the words "8 cm" written on the bottom left corner. The image is taken from a top-down perspective, looking down on the sand and the ruler.