Grover, Big Bird, Oscar and Elmo are ready to help you celebrate your child's special day. The Elmo Turns One High Chair Decorating Kit comes with a pennant banner and a plastic mat. The 43-inch long banner features red Elmo flags, blue Cookie Monster flags and colorful flags with a large number 1 illustration. The 46-inch mat features images of several Sesame Street Muppets. Wrap the pennant around the tray table and place the mat under the high chair to catch all the crumbs.