Let that favorite teacher know how much you appreciate them with this unique card and gift all in one. The card folds flat for mailing and measures 5 3/4 inches tall and 4 1/4 inches wide at the base and fits into the 6x6 envelope that is included. As the post office considers 6x6 to be an odd size this card will require extra postage. A blank panel has been added to the back of the card so that you can write a message. The card you receive may be slightly different than the one pictured.