Because they actually don’t. It’s all a ruse! Wish someone congratulations and impart a bit of wisdom onto your friend at the same time with this greeting card designed by Twin Pines. They’ll appreciate it! Details: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 sources and/or recycled materialsBlank inside for your own message.100% recycled brown kraft envelope supplied.Made in the UK.