Single Source Party Supplies - 22" Bubble Little Mermaid Bubble Balloon Qualatex Bubble balloons are neither latex nor foil - they are made of see-through, stretchy plastic that will float for weeks! When fully inflated, bubble balloons are round with smooth, wrinkle- Free seams providing a beautiful 3-D effect from every angle. Plus, bubble balloons are very durable, never oxidize, and are non-allergenic.