Flash card is a debit card of Postal Bank, also called Green Cartoon. Flash card is a national debit card product issued by Postal Bank, which can provide all financial service functions of standard green card lC card. Users open and activate the flash memory card, and then use it frequently. After reaching a certain standard, they can get rights such as video and music. Moreover, flash cards do not charge card fees, small account management fees and annual debit card fees.