Bullets are small, typically round projectiles designed to be fired from firearms, such as rifles and handguns. They are made from various materials, including lead, copper, and steel, and come in different shapes and sizes to suit specific purposes. Bullets are an essential component of ammunition, which also includes the casing, gunpowder, and primer. In addition to their use in firearms, the term "bullets" can also refer to a formatting style in written documents. In this context, bullets are symbols or characters used to create lists, making information easier to read and understand. Common bullet symbols include dots, squares, and arrows, often used in presentations and reports.