White jade. Edge has Huangqin material. Two dragon heads carved at both ends, the central front and back are decorated with interlocking lines. The inner edge of the outline are curved with continuous patterns, but most of them have been lost, and on the top of the jade it has a small hole for hanging. The overall shape is unique, the jade quality is fine and the carving is exquisite, which is a high-quality one of Han jade.