This prickly hedgehog is bring the decorations to celebrate a birthday. We are not entirely sure that hedgehogs and balloons would be the best combination but this little guy is so cute how could we say no! Details: Designed by Owen Davey. 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 materials Blank inside for your own message. 100% recycled brown kraft envelope supplied. Made in the UK.