The image shows a close-up of a rock surface with small holes scattered across it. The rock appears to be made of a light-colored material, possibly sand or stone, and has a rough texture. On the right side of the image, there is a black and white ruler with a grid-like pattern on it. In the center of the ruler, there are several small, irregularly shaped holes that appear to be imprinted on the rock. The holes are of different sizes and shapes, and some are larger than others. The ruler is resting on the surface of the rock, and the background is blurred, so the focus is on the ruler and the holes.