Wu Lou has the power to absorb the sickness energy and store it in its endless bottom in order not to let the sickness chi hurt you. There are also one hundred different kinds of Chinese herbs that can cure all kinds of diseases are carved on the surface of the Wu Lou. In addition, the mantras scripts are enhancing this brass metal wu lou's power.
They are all made of solid metal copper. You can open the top of the brass wu lou to put something inside. The dimension of the metal wu lou is approx. 2 1/2" x 2 1/2 x 5 1/2".