Make your special events extra special with our Balloonify Gold Mylar Letter I Balloon. Designed in the shape of the letter "I," this birthday balloon can be paired with other Balloonify letters and numbers to create customized messages. Made of premium mylar material, this letter balloon is moistureproof and will maintain its superior appearance even on rainy days. This custom balloon is durable and can be reused numerous times. The self-sealing design of this party balloon makes it easy to set up and deflate, while inflating it is as simple as using a hand pump to fill it with air or helium. With an aluminum gold foil finish, this balloon decoration is sure to be the centerpiece of your venue. Featuring a built-in hanging loop, this giant balloon lets you hang it wherever you like. This happy anniversary balloon measures 40 inches in length. 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) is available and sold separately.