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xinxinzheng / student

xinxinzheng

This is smart piggy bank,It can be stored in the aame as the ordinary piggy bank,and displays the change.
When you need some change, you juse say it to the number you want.Then it wull fall out of the change
you want.You can buy some of these small changes.

University

Shanghai Normal University

Shanghai Normal University
Academy Arts and Design
Shanghai, China

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