Check out these fun party animals here to wish you a happy birthday with this bright bold birthday card. Details: Designed by Siiri Väisänen. 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.