Bronze mirror has a flat folded edge, a base, and three round ears on the upper abdomen. Unearthed in the second side room on the west, one copper pot and two copper flat pots with duckbill-shaped flow were placed in the excavation. This mirror is the bronze with the largest volume unearthed in this room, because it is the same as the silver pot, silver mirror and other bathing utensils. It is a bathing utensil. In the pre-Qin period, mirror had been a bathing device. The volume of this bronze mirror unearthed from the tomb of King Chu seems to be inadmissible for bathing, and should be used for bathing water.

In the Han Dynasty, bathing became a social custom. The court both inside and outside the court paid great attention to the neatness of dress and clothing, and "Xiu Mu" became a legal holiday for officials of the Han Dynasty. In the tomb of King Chu, there are finely carved toilets and bathrooms. There are multiple toilets in the main cemetery and auxiliary cemetery of the Chu King tomb in Beidong Mountain. Separate toilets. In 2005, several large bronze mirrors, flat pots, mortars, pestles, and bathing utensils were unearthed from the funeral pit in Yanggui Mountain, Xuzhou. These indicate that the King Chu also attached great importance to bathing. There are many types of bathing utensils unearthed from the Tomb of King Chu of Shizi Mountain. Bathing utensils include silver pots, plates, mirror, bronze mirror, flat pots, kettles, lamps, etc. The functions include lighting, boiling water,watering and so on. Bathing has rubbing stones for bathing, medicinal materials for health bathing, bath towels for drying the body, bronze mirrors for makeup and cosmetics, and so on. It can be seen that the daily bathing of the King Chu is very particular, not only removing the dirt on the body, but also given new special functions such as beauty and health care.