Knock Knock Send Some Friendship Fill in the Love Postcard Set, Blue (29006) Fill in the love postcards go where no text or email can! Send some friendship with two sets of twelve different customizable postcards to hand to someone, leave on a desk, Tuck into a bag-or actually mail Use cool stationery to prove your undying devotion Personalized postcards are more welcome in mailboxes than car-wash coupons 6 x 4 inches; 24 postcards (2 each of 12 silkscreened designs)