Card is printed on heavy white cover stock. Outside of card: Happy Birthday Inside: Enjoy your day, your year, and all the moments in between. Happy Birthday Dimensions: Each card has a single fold and measures 5 1/4" x 5 1/4" and comes with an envelope. Buy six cards, get one free! (Free card must be of equal or lesser value.) Add seven cards to your cart and the amount for the seventh card will be subtracted from your total. Tip: If you would like to order more than three cards, get the best deal on shipping by combining your card order with a larger item, or a box of up to 20 cards.