Turn dull parties into super fun parties with our Baloonify Black Mylar Letter L Balloon. Mixing and matching this letter L balloon with coordinating Balloonify number and letter balloons allows you to turn any party into a custom theme party. This foil balloon is moistureproof and made up of sturdy material for a long float life. Constructed with premium mylar material, this reusable foil balloon does not rupture or burst easily. With the self-sealing closure, avoid the hassle of tying this alphabet balloon with your fingers. This letter balloon can be inflated using a pump with air or helium, making it a convenient process. With a built-in hanging loop, this mylar balloon can be hung on walls and ceilings to elevate the look of your balloon display. This helium balloon has a black finish ideal for creating creative and sophisticated backdrops for events. Each black balloon measures 16 inches. 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.