Tidy Cup / Tableware,cup

When we’re drinking, sometimes there’s water or liquid that flows out of the cup. In order to solve the problem, there’s a notch around the cup, so the liquid or water could flow into the notch and keep the table clean.

To prevent the notch full of liquid and can’t lay up it, there’s two notch around the cup. And the notch is not a full circle. It’s 320° around the cup and stop at the handle round. So that when holding the cup won’t touch the notch and the liquid and won’t get wet.
Owing to the surface tension, the liquid won’t flows out of the notch.