Elevate your Harry Potter party decor with a Harry Potter Birthday Banner Kit! This cardstock banner features cutouts that spell out 'Happy Birthday,' and each letter is designed in the style of a Hogwarts house. The Harry Potter happy birthday jumbo add an age banner is the perfect addition to your magical celebration. Measuring 10.5' x 10" (3.2m x 25cm), this jumbo banner allows you to customize the age of the birthday celebrant. With its vibrant colors and eye-catching design, it will surely be the centerpiece of your party decorations.