Unicorn Party Greeting Card Puzzle from Mudpuppy is a 12-piece postcard puzzle with an image of an enchanted unicorn soaring through the sky with balloons on one side and space to write a message on the other side. Package comes with puzzle put together, write the message on back, break up the pieces, place 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 - Ages 3+