Spread cheerfulness and festive flair all around your party space with our Balloonify Silver Mylar Letter F Balloon. Pairable with other Balloonify letter and number balloons, this F-shaped balloon will be the perfect addition to all your events. Made from mylar, this birthday balloon is more durable than most traditional balloons and can be used in humid conditions as well. This party balloon is reusable and is designed with a self-sealing valve to increase the float time of the balloon. To inflate this mylar balloon with air or helium, use manual or automatic air pumps. The sparkling silver shade of this metallic balloon complements all kinds of decors. To hang this graduation balloon on walls and ceilings, this custom balloon comes with in-built hanging loops. This moistureproof foil balloon measures 16 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.