Darts is a game in which the players throw darts at a target called a dartboard. A regulation dartboard measures about 18 inches (46 centimeters) in diameter. It is divided into 20 equal-sized areas shaped like wedges of a pie. A player scores from 1 to 20 points by hitting different wedges. The board is further divided by a narrow outer ring called the double ring and a narrow inner ring called the triple ring. A dart that hits one of the rings scores either double or triple the value of the wedge. The bull's-eye is worth 25 points. A double bull's-eye inside the bull's-eye is worth 50 points.