Message Card Size: 5.5cm (height) x 9cm (width) The area for writing your message uses thick paper with foil. (It's a little hard to see, but there's a thin silver foil.) The surface is slightly rough. A sealing stamp-style sticker has been applied (⁠•⁠‿⁠•⁠) It will be protected from water damage and sent in an envelope. I prefer to do business with those who can provide some comments after purchase.