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Has it ever happened to you? Have you ever found that it is difficult to open a freshness packet in a short time? It is quite a kind of awful experiences. The “MBag” solves this problem perfectly. With its M-shaped (both sides of open edges have a half circle) tear line, we can open the “MBag” immediately and easily by only two steps，holding each semi-circle and pulling to opposite sides. This design can be also used in garbage bags or other plastic bags.
Fangyuan Wu, Jinma Wang, Lei Wang, Wei Li, Yi Ren