Interior greeting: Take time to wander, explore and enjoy. Happy Birthday. Printed on FSC-certified paper with soy-based inks in the USA. Paired with white envelopes. Card dimensions: 4.5" x 6.25". Please note that our greeting cards are printed with the suggested retail price on the back. If you prefer the added protection of cello, please select the option to add. Our cello jackets wrap around the card and envelope in a book cover-like style, allowing the card to open with interior greeting visible.