Astound your guests at your kid's birthday party with our Balloonify Blue Mylar Number 7 Balloon. Shaped into the number "7", this reusable party balloon can be combined with other Balloonify numbers and letters to create a captivating backdrop. The self-sealing design of this helium balloon ensures keeping it in the same shape and size for a very long time. This durable party balloon can be reused for multiple occasions. Easily hang this party balloon with the built-in hanging film; on any hook or hinge on the wall to easily set up your decor. This number balloon is made from durable mylar and is moistureproof to endure outdoor usage. Expand this custom balloon with air or helium according to your preference. Inflate this balloon decoration using a hand pump to save time. With a blue shade, this mylar balloon exudes elegance at your parties. This happy anniversary balloon measures 40 inches in length. To reuse these balloons, gently deflate, properly store, and carefully reinflate without overfilling. Shipped deflated in a 1 count box.