Inside Verse: Have you tried rounding down? Happy Birthday Card Size: 4.75x6.7 inches Includes: 1 card / 1 white envelope Special Features: Recycled Paper Paper Stock: Recycled Heavy Cardstock The interior of this Avanti Press birthday card design reads: Have you tried rounding down? Happy Birthday. The card measures 4.75x6.7 inches and is printed on recycled heavy cardstock. Includes 1 card and 1 envelope. The card has the following special features: recycled paper. From the America Collection line of cards. Great Minds - Institute for Advanced Study, Princeton, New Jersey - 1947. Greeting card made in the USA.