The Cosmic Party Greeting Card Puzzle from Mudpuppy is a 12-piece postcard puzzle with an image of an out of this world birthday party and space to write a message on the other side. Package comes with the puzzle put together, just write the message on the back, break up the pieces, place it in the envelope and mail. ? 12-piece puzzle ? Add your own message to the back! ? Includes color-coordinated envelope and full-color sticker seal ? Package: 5.25 x 7.25", 13 x 18 cm ? Fun for everyone 3+