Create a space-themed birthday party effortlessly with our Balloonify Silver Mylar Letter H Balloon. This Balloonify number is shaped like the letter H and pairs well with our other Balloonify numbers and letters to provide customized touch. Constructed from mylar, this birthday balloon is moistureproof and avoids being affected by humidity. With its durability and reusability, this anniversary letter balloon can be used for numerous parties repeatedly. Thanks to its self-sealing design, this metallic balloon won't deflate or leak air. With the aid of a hand pump, you can easily inflate this foil balloon. Expand this silver mylar balloon with air or helium. This anniversary balloon decoration features a hanging loop that makes it easy to put up anywhere. With a stylish silver aluminum finish, this helium balloon gives your events an electrifying modern look. 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.