What are the uses and functions of Wei Zi copper coins?

Accessories are worn to relieve mental stress. According to the inquiry, the doctor's website shows that Wei Zi copper coins are used as accessories on the body and have the effect of relieving mental stress. Lagerstroemia copper coin has a pouring opening leading to a liquid tank, centering on five coins symmetrical left and right, and the tank is connected with the fork of each coin filled with liquid.