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The third world is lack of water, and we wish them could also enjoy the convenience of drinking fountain. The product has four parts, when the first part taken away, it can then store water; when the container is full of water, you can attach it to the second part, which work as a filter; then you can open the third part, the filtered water will flow into the container, and it also has a faucet on it; the function of fourth part is a cup. This whole process is power free. After the whole process, you can hang it high and use gravity to get the water like a drinking fountain.
LIN,LIANG-JUN CHANG,JIA-YU ZHAN,ZI-LIN HUANG,CHANG-RUEI