Recreate special moments using our Balloonify Black Mylar Letter U Balloon. Shaped as the letter "U," this graduation balloon can be aligned with our other Balloonify letters and numbers. The top-quality mylar construction of this helium balloon lets you reuse it for a long time. Plus, this happy anniversary balloon is moistureproof. Once inflated, the self-sealing valve of this custom balloon doesn't let air or helium escape. The hanging film provided with this foil balloon allows you to hang it on walls. With an incredible black finish, this party balloon is great for all themed parties. This balloon decoration measures 40 inches when inflated and can be filled using a pump. 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.