Shen Wenjiao: founder of Soso Studio, CCO (chief creative officer) of PIY brand, and former senior CCO of Ogilvy. 

Zhang Wei: designer of Soso Studio, product manager of PIY brand, and a graduate of Guangzhou Academy of Fine Arts.

Materials: paper, cement

First of all, wood pulp is mixed with cement; and then taking account of the contrary characteristics between paper and cement, different ratios of pulp to cement are created and placed in different tiers one by one either in positive sequence or in reverse order. The product thus combined is 80% lighter than that of pure cement, so it could reduce transportation costs, and is environmentally friendly since paper could be recycled.