This watercolour postbox greeting card has been hand designed by us using our original watercolour painting. The design has then been printed on to 300gsm watercolour paper to create a greeting card. . - Printed on 300 gsm watercolour paper.  - Size approximately 6 inches by 4 inches. - Blank inside. - Includes C6 white envelope and sleeve for protection (compostable where possible).  - Hand designed in Lancashire England.