The interior of this Oatmeal Studios Michael Sieron birthday card design reads: The bad news is… they also found out how old you are! Happy Birthday! The card measures 5x7 inches and is printed on recycled heavy cardstock. Includes 1 card and 1 envelope. The card has the following special features: recycled paper vegetable based inks full color interior. Card and envelope are printed with vegetable-based inks on recycled paper. Printed in USA.