Deck up your space party-ready with our Balloonify Black Mylar Letter H Balloon. Easily create personalized decor with this H-shaped mylar letter balloon that pairs with other Ballonify letters and numbers. This birthday letter balloon is made of mylar and is moistureproof, making it ideal for using it outdoors. With its durable and reusable design, this balloon can be used for all kinds of parties repeatedly. This metallic balloon is self-sealing, so air will not escape and cause deflation. Inflate this foil balloon effortlessly using a hand pump. Easily float or hang this black mylar balloon using air or helium. This foil balloon includes a hanging loop that allows you to hang it anywhere you want. Featuring an aluminum black finish, this helium balloon adds a stylish touch to any event. This happy anniversary balloon measures 16 inches in length. To reuse these balloons, gently deflate, properly store, and carefully reinflate without overfilling. Shipped deflated in a 1 count box. This party balloon can be easily inflated with the included straw, providing you with full control to help eliminate the risk of over-inflation. Electric air balloon pump (SKU: RWP1061) is available and sold separately.