Water holding device

This creation offers a water containment device consisting of a cup body and a cup lid. Inside the circular base at the bottom of the cup body, there is a central disk and multiple circular rings. When not filled with water, the multiple circular rings are folded into the circular groove of the base, allowing for easy carrying and packaging when the cup lid is closed and the device is compacted. To contain liquid, the cup lid can be opened, and the multiple circular rings can be pulled upward to form a stable and waterproof container.”