CUSTOM CARD Outside of Card: Happy Birthday. You're simply the ZEST Inside of Card: Blank Scratch and Sniff : Lemon ++++ THE CARDS ++++ This card is 4.25 x 5.5 inches, digitally printed on 130lb card stock with a matte finish. The card comes with a white envelope and packaged in a plastic sleeve for protection. ++++ IMPORTANT INFO ++++ Do not scratch the card too much before you give it away as it uses encapsulation technique for scent. Tiny bubbles are created holding in the scent and once you release the scent through scratching it will start to fade.