Yes your eyes are working, enamel pins… on greeting cards! The pin is incorporated into the design of the card and can be relocated to a bag or jacket when gifted! AMAZING. These pins are also available without the card, so keep an eye out for those beauties!Details: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 materialsBlank inside for your own message.100% recycled brown kraft envelope supplied.Made in the UK.