A gift card may resemble a credit card or display a specific theme on a plastic card the size of a credit card. The card is identified by a specific number or code, not usually with an individual name, and thus could be used by anybody. They are backed by an on-line electronic system for authorization. Some gift cards can be reloaded by payment and can be used thus multiple times.
Gift cards differ from scrip gift certificates, in that the latter are usually sold as a paper document with an authorized signature by a restaurant, store, or other individual establishment as a voucher for a future service; there is no electronic authorization. A gift certificate may or may not have an expiration date and generally has no administrative fees.
Bank issued gift cards may be used in lieu of checks as a way to disburse rebate funds. Some retailers use the gift card system for refunds in lieu of cash thereby assuring that the customer will spend the funds at their store.