Make your celebrations special with our Balloonify Pink Mylar Number 3 Balloon. Use this party balloon shaped as a '3' to enhance celebrations by pairing it with our other Balloonify number and letter balloons. This reusable custom balloon is made of mylar to be moistureproof and durable. To avoid possible air leakage, this metallic balloon's valve is self-sealing. This mylar balloon is inflatable using either a manual or automatic pump. With a shiny pink finish, this graduation balloon gives a splash of color to your decor. Using the built-in hanging loops, you can easily hang this number balloon. 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.