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Press, Length Change is an adjustable bus grab handle. With this function, standing passengers of different statures will all find their most comfortable way.
Bus grab handle originally designed to make standing passengers on the bus more comfortable and safer. However, bus grab handle remains all fixed length, while the passengers are at different heights. So the grab handle may be much long for tall passengers and a little short for the low ones. Unbefitting grabbing posture make passengers arm tired. So the adjustable grab handles are very necessary for a bus.
Chen Jian; Liu Zhen; Zhou Hai-lun