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Coins cards / Coins cards

Coins cards
Coins cards

Coins cards
Nowadays, small denomination coin's use gradually replaced the use of the paper money, and because the value is small, it is not convenient to take ,after each shopping, the remaining change will be more and more.
" Coin Card" can install four dime and five coins one time, in total nine corners, every time after shopping, the fraction will be filled in, if it is empty, it will be a portable coin holder, the overall shape size looks like a credit card, which can be placed into the purse directly , it can be bring out as take pills when use.


Yanshan University

Yanshan University
Qinhuangdao City, China

Yongbin zhong Jianyu zhang Li hong Jinglu li Shuwei wang