A bank card is a plastic card issued by a financial institution that allows users to access their bank accounts. It can be used for various transactions, such as withdrawing cash from ATMs or making purchases at stores. Bank cards typically come in two main types: debit cards, which draw money directly from a bank account, and credit cards, which allow users to borrow money up to a certain limit. Bank cards often include features like a magnetic stripe, a chip for enhanced security, and a personal identification number (PIN) for verification. They are widely accepted at retailers and online platforms, making them a convenient tool for managing finances and making payments.