Good question! All of our cards are A5 size (148mm x 210mm). They are printed onto a 400gsm card (which is quite hard – ooer!), and not that shiny stuff that makes your ink smudge either. We hate that. The cards are blank inside for your own naughty little message. They come with a white gummed envelope. The card will require a large stamp if you are posting it.
We may be d**ks, but not to our environment: check out our sustainability & environmental state-ment on our Homepage.