Graduation caps, also known as mortarboards, are traditional headwear worn during graduation ceremonies. They typically consist of a flat, square-shaped top and a tassel that hangs from the center. The cap symbolizes the completion of an academic program, and the tassel is often moved from one side to the other to signify graduation. These caps are commonly worn by students from various educational levels, including high school and college. The design and color of graduation caps can vary depending on the institution, with some schools using specific colors to represent different fields of study or degrees, such as bachelor's, master's, or doctorate.