Baloons -

Keep uninflated balloons in a cool, dark place (like a closet) inside airtight containers to prevent oxidation and degradation from light and heat. Beyond the Party

The most common variety, often used for arches and garlands. They are best for air inflation if smaller than 9 inches, but can also hold helium for shorter periods. baloons

Long, thin balloons (like the 260Q) used specifically for balloon animals and sculptures. Balloon Decorating Fundamentals Keep uninflated balloons in a cool, dark place