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The recent bus crash in Guizhou, China, touched people's hearts and killed 21 people. But if we can have perfect facilities just in case, it can actually save many lives. This bus handrail is such a design. When the vehicle falls into the water, people can press the emergency button on the bus handle and pull down. The compressed airbag inside the handle will bounce into a huge lifesaving airbag to help people escape from the water. The button on the handle is covered when not in use to prevent accidental touch.