Cat croissant anyone? I know which one I'd choose. The fluffy one that likes ear scratches and warm surfaces... Photograph by Melnichuk Roman (@hosico_cat). 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 brown kraft envelope supplied. Made in the UK. The product type is: Greeting Card (SQ).