This balloon is especially fun because it floats as if it’s walking around the party room. Balloon measures approximately 50"H x 30"W. Pattern is printed on both sides of balloon. May have two different images on either side. Helium is what gives this balloon the ability to “walk”. Be sure to pick up a helium tank (sold separately) to bring your Airwalker friend to life! This is an officially licensed Hello Kitty product. Please Note: Balloons ship flat.