Create a visual treat for your guests using our Balloonify Gold Mylar Letter O Balloon. To create unique messages, combine this O-shaped happy anniversary balloon with our other Balloonify numbers and letters. This custom balloon is made from mylar, providing it with the ability to withstand heat and moisture. Plus, this foil balloon is reusable for multiple occasions. To prolong its float life, this letter balloon comes with a self-sealing valve that avoids unnecessary leakage. Conveniently hang this mylar balloon on any surface to use it as a space filler. Inflate this balloon decoration using a manual or automatic pump to simplify the process. With an eye-catching gold finish, this helium balloon is great for all formal and informal events. Measuring 40 inches when inflated, this custom 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.