Water balloons are small, flexible balloons made from latex or rubber that can be filled with water. They are typically used for fun activities, such as water balloon fights or games during hot weather. When filled, they can hold a significant amount of water relative to their size, making them a popular choice for outdoor play. To use a water balloon, one simply stretches the opening, fills it with water, and then ties it off to prevent leaks. When thrown, they burst upon impact, creating a splash. Water balloons are often found at parties, picnics, and summer gatherings, providing entertainment for people of all ages.