Subtly accentuate any event to the next level by using our Balloonify Gold Mylar Letter O Balloon. Shaped as the letter 'O', this party balloon is pairable with our other Balloonify letter and number balloons to create custom banners. This letter balloon is made from mylar, giving it moistureproof properties to efficiently stay afloat in humid conditions. With durable construction, this birthday balloon is reusable for all your upcoming celebrations. The self-sealing valve of this metallic balloon avoids air leakage to keep the balloon in its pristine shape. This mylar balloon can be inflated using a simple hand pump rather than blowing it yourself. Designed with a lustrous metallic golden shade, this graduation balloon accentuates your party setting. Easily hang this custom balloon using its built-in hanging loop to create beautiful letter arches with other balloons. Measuring 16 inches in length, this foil balloon can be inflated 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) is available and sold separately.