Blank cards, excellent quality and feel. I used them for Christmas cards, writing in my own greeting, and choosing a picture appropriate to the recipient. Would do equally well for birthdays. But the envelopes are 2 mm too big for standard 1st-class or 2nd-class postage. The card itself is ok for size, so just need to fold the envelope over, 2 mm tighter than its own fold, to make it eligible for a standard 1st-class or 2nd-class delivery.