Elevate your party stage using our Balloonify Blue Mylar Number 7 Balloon. Styled in the shape of the number "7", this party balloon can be put together with other Balloonify numbers and letters for decorations. The premium material of this mylar balloon allows you to reuse them for multiple occasions. Plus, this foil balloon can be conveniently used for outdoor events, as they are moistureproof. With a self-sealing feature, this helium balloon locks the air inside to sustain its shape and size for a long time. Easily hang this balloon decoration on the wall or ceiling of your place using the hanging loop to style your place beautifully. To save time and energy, use a hand pump to simplify the process of inflating this birthday number balloon. This custom balloon has a blue finish to give a vibrant appeal to your festive decor. With a measurement of 16 inches when inflated, this number balloon can be filled with air or helium. 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.