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This is a wristband for outside lighting. It is designed for hiking tour. When walking in the dark, peole can find their group member easily without lost. Also, the leader can find danger immediately and tell others in time.With this special wristband, you can always find your hope.
Donghua University
Shanghai, China
Chubing Ling,
Donghua University
Yanbo Ni,
Donghua University
Haoyu Liu,
Donghua University
Wenbin Jiang,
Donghua University