Amaze your loved ones on their birthday using our Balloonify Black Mylar Letter Q Balloon. To create customized messages, this Q-shaped helium balloon is compatible with our other Balloonify letters and numbers. The mylar build of this custom balloon makes it moistureproof, allowing it to withstand humid conditions. Simply close the sealing valve after inflating this graduation balloon to not let air or helium leak. Hang this happy anniversary balloon using the built-in hanging film on walls or ceilings. With a beautiful black finish, this reusable party balloon is apt for your black-themed party. To simplify the inflation process, use a manual or automatic pump to fill this letter balloon. This mylar balloon measures 40 inches when inflated. 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) sold separately.