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It is a tissue holder consists of two boxes. The small pieces of tissues are only half as big as the bigger ones. You choose to use them as the circumstances may require. For instance, you just want to clean a blot of ink on the table so using a big piece is wasteful. For that reason, you draw out one from the smaller box and clean it. This simple design makes full use of every piece of tissue.
It always reminds you to be kind to environment by wasting less. Your carbon footprint will decrease unconsciously as time goes by. If everyone uses tissue in this way, a lot of trees can be saved one year.
Zhejiang University of Technology
Binbin Feng Junlan Wu Chenlu Yu Liang Zhou