The image shows a close-up of a piece of sand with a ruler on the right side. The sand appears to be light brown in 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 two lines, one in the center and one on the bottom. The lines are slightly curved and appear to be made of a thin, textured material. The ruler has a black and white striped pattern on the top right corner and a white circle in the top left corner. The image is taken from a top-down perspective, looking down on the sand and the ruler.