The image shows a display case with a blackboard on top of it. On the blackboard, there is a white line drawing of a dragon. The dragon is drawn in a stylized manner with its wings spread wide and its head turned to the side. Below the dragon, there are several small stones of different sizes and colors arranged in a grid-like pattern. The stones appear to be of different shapes and sizes, with some having a rough texture and others having a smooth surface. The background of the image is blurred, but it appears to be a wooden surface.