Printed on a beautiful stock, occasion cards feature Felix's watercolor drawings, his handwritten font, and witty sayings that are positively charming the quality envelope is the finishing touch. 4.25 x 5.5 inches folded. Ultra-premium, lightly-textured acid-free paper stock. Packaged in a cello sleeve. Front: I hope your birthday is dino-mite! Inside: (illustration of pteranodon holding a candle).