description: A happy and very hairy yak stands happily in the center of the card. A banner reading "happy birthday" is strung between its two long horns. front greeting: happy birthday inside greeting: blank format: 4.25 x 5.5 inches, folded (A2) printing: letterpress-printed in our Acton, MA studio paper: FSC-certified cover made from 100% post-consumer waste envelope: apple green origin: USA