Let someone know just how much they mean to you by giving the job to 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 forests and/or recycled materials. Blank inside for your own message. 100% Recycled Paper Envelope. Made in the UK.