The best birthdays have to involve cake. It’s a no-brainer. Hopefully this greeting card will be a good luck charm and fill the day with lots of cake activities!Details: Designed by Hello!Lucky Size: A6 (105 x 148mm / 4.1 x 5.8 inches). - that fits as a standard sized letter in the UK mail. Produced from sustainable forests and/or recycled materials. Blank inside for your own message. 100% recycled brown kraft envelope supplied. Made in the UK.