Astonish your guests with showstopper decor by using our Balloonify Silver Mylar Letter A Balloon. This letter A birthday balloon can be conveniently paired with other Balloonify letters and numbers to create personalized messages. Made from premium mylar, this letter balloon is moistureproof and can withstand indoor and outdoor usage. The durable construction of this party balloon allows you to reuse them on multiple occasions. With a self-sealing valve, this balloon decoration ensures the balloon stays in shape by locking the air in. For a seamless inflation process, this graduation balloon can be expanded using a hand pump. This custom balloon is suitable for air and helium inflation. The aluminum silver foil finish of this helium balloon adds a stylish touch to your party decor. With a built-in hanging loops, this custom balloon can be easily hung on hinges. This silver mylar balloon measures 40 inches in length. To reuse this balloon, 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.