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This product is to block to leak carbonic acid from soda. The characteristic of this design is that the bottle can be stored upside down.
Generally people make the bottle stand upside down to prevent the carbonic acid.
But, it is very uncomfortable for storage, and the bottle fall down easily. This product is designed to solve this kind of problems.
In addition, you can pour the soda while the bottle stands upside down by applying the pump.
Therefore, you can enjoy drinking soda easily and as good as new!
Korea University of Technology and
Cheonan ,Chungnam, South Korea
Goyang-si, Gyeonggi-do, South Korea