Birthdays are made for relaxing and enjoying. So, what better way to spend them than pursuing your favourite hobby? If F1 is the name of their game, this is just the card for them! Details: Designed by: The Hobbyist. 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.