I’m sorry cake, but we gotta do what we gotta do on birthdays. EAT YOU. It’s a sacrifice we must make. This greeting card was designed by the witty Safely Endangered, the king of comic strips!Details: Designed by Safely Endangered. Size: Square (148 x 148mm / 5.8 x 5.8 inches). - that fits as a standard sized letter in the UK mail. Produced from sustainable sources and/or recycled materials Blank inside for your own message. 100% recycled brown kraft envelope supplied. Made in the UK.