Wadang is a type of ridge tile covering used on the front end of a barrel tile to protect the eaves of ancient Chinese architecture. It has a diameter of 22 centimeters and features triangular and rectangular patterns along the edges.

The wadang from the Han Dynasty (202 BC-220 AD) housed in the Xi'an Qin Brick and Han Tile Museum features an image of a jade rabbit on the left and a toad on the right when viewed from the front. The two animals are surrounded by branches of osmanthus trees, with a continuous pearl pattern along the outer edge. This artifact originates from the remains of the Jianzhang Palace from the Han Dynasty, which is located in Xi'an, Shaanxi Province, China.