Jazz up your party decor with our Balloonify Rose Gold Mylar Letter K Balloon. Shaped as the letter "K", this single-letter balloon, pairing this party balloon with other Balloonify numbers and letter balloons will complete your decor with personalized words and phrases. This letter balloon is made up of mylar which is highly durable and moistureproof. With high tensile strength, this birthday balloon does not burst easily and can be reused many times. With a self-sealing closure, the air doesn't leak while inflating this metallic foil balloon, making it a quick and convenient process. This alphabet balloon can be inflated using helium or air with an air pump to avoid the hassle of doing it manually. With a built-in hanging loop in this decoration foil balloon, create beautiful wall and ceiling balloon displays. With the rose gold finish, this metallic balloon will make the decoration of the event unique. Each mylar balloon measures 16 inches while 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) is available and sold separately.