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When we use to practice calligraphy paperweight,copybook,blankets,and other tools that are inconvenient to carry,but also takes up space.Now we can use a tool to address the needs,paperweight,calligraphy copybook with blankets when we no longer need filled your desk,let your desk clean and simple recovery.Paperweight built-in camera,directly to the information you need to place the projector.Copybook by phone APP control,you are free to choose the font,adjust the size and number of the grid.
Changzhou University
ChangZhou, China
Yunyun Zhang,
Changzhou University