A rolling pin is a kitchen tool used primarily for flattening and shaping dough. It typically consists of a cylindrical body, often made of wood, marble, or plastic, with handles on either end. Bakers use rolling pins to create uniform thickness in dough for various baked goods, such as cookies, pastries, and pizza crusts. There are different types of rolling pins, including the traditional French style, which has no handles, and the more common handled version. Some rolling pins come with adjustable rings to ensure consistent thickness. This simple yet essential tool is a staple in many kitchens around the world.