O is for OH YEAH!We present to you these gorgeous letter balloons in a Grand or Mini size. Give your glam party a personalized touch. This collection of metallic balloons features every letter from A to Z so you can mix and match to form any word. Whether you're celebrating a big birthday, graduation, new years eve, anniversary, or just want to get someones attention these shining balloons are perfect for your celebration theme.> Comes uninflated - can be filled with helium or air> Note that overfilled balloons will pop! Fill slowly> Made of mylar foil; 16"/41 cm balloon has tabs for easy hanging> Made in the USA > Refillable! Use it over and over again!