“Xing Zhou” is a kind of black-stone tea tray with the boat as the model sample, which moral is drinking tea at odd times, just like boating on the running water. The 3 centimeters' thickness of the bottom can improve the drop of the outlet and make the water flow more smoothly. The 0.5 cm to 1 cm's thickness of both sides can reduce the weight of the tea tray and create a overall feeling of emptiness&freedom. The needs of wet-made&dry-made will be both satisfied through the metal knob.