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From our daily life experience, we find out that toothpaste easily drops from the toothbrush. The fact is due to the cylindrical shape of the toothpaste squeezed out. Also, the water on the toothbrush makes the toothpaste causes it to easily drop if the toothbrush tilts a little bit. To avoid this kind of inconvenience, we designed a toothpaste tube with rectangular-squeeze hole. By applying the toothpaste with the long side of the rectangle toward the toothbrush, you don’t have to worry that the toothpaste will drop anymore.
School of Design,