Create a wonderful backdrop for your celebration with our Balloonify Blue Mylar Number 3 Balloon. Pair this custom balloon, made in the shape of the number 3, with our other Balloonify number and letter balloons to create beautiful celebratory banners. This mylar-made party balloon repels moisture, allowing it to float in humid conditions. Reuse this metallic balloon several times to add sparkle to all of your future celebrations. The self-sealing valve helps regulate the air pressure inside the balloon to keep it in its original shape at all times. This graduation balloon is simple to set up and assemble since it inflates with a hand pump. The aluminum blue finish of this number balloon oozes a shiny aesthetic appeal. You can hang this birthday balloon from walls and ceilings by using the built-in hanging loops. Measuring 40 inches in length, this foil balloon can be inflated with air or helium. 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.