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The piggy is designed for parents to cultivate their kids’concept of money.One side is for parents and the other is for their child.They are supposed to throw the penny into their own side everyday to keep it balance. All the penny could be throwed into the center of the piggy and can be kept as whole family funds.The heavy side means that the other side’s owner fotgets to save one penny today and the piggy will lose balance
Beijing University of Posts and Telecommunications