5.6cm in diameter and 152.8g in weight. This jade wall is in the shape of a circular plate, perforated in the center, opaque, and the phenomenon of weathering can be seen locally. It is buried in the ground left by the long years. The round wall is carved with valley patterns on both sides of the round wall. There are Chilong standing. Chilong is carved with hollows, simple in shape and vivid in shape.