It is the cards which can be put in and mailed to an envelope. The purpose will be such as a wedding and invitation, etc. We have available the various kinds of cards which do not limit to use and which can be used for multiple purpose. Indipendently, probably, it will also be good to use and to carry out goods to be attached for a present. special art design hight quality 5 colour printing material can be exchange by order customer accecpt customer/company design