This card is sure to put a sweet smile on anyone’s face with these cheeky lemons. Details: Designed by Charlotte Love Â 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 Kraft Paper Envelope. Made in the UK.