Add a touch of whimsy and excitement to your event with our vibrant 40-inch purple number balloon! But wait, there's more! Let us guide you on how to properly handle our aluminum F balloons. Step one: locate the self-sealing valve. Step two: inflate with an air pump or straw, taking care to go slow and not overinflate. We recommend using the pump up to 90% capacity, then switch to the straw for precise control. If you encounter a sticky situation with two layers of aluminum F, pause the inflation process, separate the layers, and continue. Step three: these balloons are reusable! Just insert a thin tube into the charging opening, release the gas gently by pressing the balloon, and fold it up for future use. When filled with air, our high-quality balloons can last for months or even half a year without leaking. However, please avoid exposing them to extreme heat to prevent bursting. Due to the balloon's unique nature, we are unable to open and inspect each one, but rest assured, our damage rate is only 0.5%. In case of an urgent repair, simply use tape to temporarily seal any holes.