All-in-one kit makes it easy for kids to exchange valentines with the whole class (including the teacher!) Sesame Street Valentine's Day card pack contains 32 perforated, tear-apart cards and 1 teacher card with fun designs featuring Big Bird, Oscar the Grouch, Cookie Monster, Elmo, Grover and more. Matching decorated box is the perfect way to collect Valentine's cards. Box folds flat into lid and unfolds quickly and easily to form a sturdy classroom exchange mailbox. Box features a 3D pop-up of characters on lid. Assembled box measures approximately 7.25" deep by 7.25" wide by 7.2" high. Printed on high-quality paper stock, Hallmark's greeting cards are made with paper from responsibly managed forests