If in doubt always blame the cat! Wish someone a Happy Birthday with this card from artist Ken the Cat. Details: Designed by Ken the Cat 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 Paper Envelope. Made in the UK.