Tapioca balls, also known as boba, are small, chewy spheres made from tapioca starch, which is derived from the cassava root. They are commonly used in bubble tea, a popular drink that originated in Taiwan. The balls are typically cooked until they become soft and chewy, providing a unique texture that complements the drink. These balls are often sweetened and can vary in size, with larger ones being more popular in bubble tea. Tapioca balls are gluten-free and are enjoyed by many for their fun, playful quality, making them a favorite addition to various beverages and desserts.