For the card issuer it insures a flow of new customers because each family will have the incentive to benefit from store and service points offers.
The biggest advantage of this solution is having a miniature card – a key ring. It is one-third the size of a standard card. You can easily attach it to a key or a lanyard and always have it with you. It’s a small, nice, advertising gadget. It doesn’t take up space in your wallet or purse, so it’s with you whenever you need.