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This design make a hole in the handle through which air is blown with a mouth put to it. The hole is linked to the bottom of the inside the cup, so the air blown into the hole in the handle comes to the hole of the bottom of the cup. The air blown from both sides forms a screw to stir up the coffee-mix and water, making it possible to drink it without needing to stir with a stick separately.
kookmin univ.
Seoul, South Korea
kookmin univ.
Seoul, South Korea
Jong Ho, Kim
Hyeong Seok, Park
Dae Kwan, Park
Soo Chan, Jo