Wish an out-of-this-world birthday greeting with this fab card designed by Gemma Correll! Details: 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 red & white envelope supplied. Made in the UK.