A basketball hoop consists of a circular metal rim, typically 18 inches in diameter, attached to a backboard. The hoop is positioned 10 feet above the ground, making it a standard height for competitive play. The backboard helps players aim their shots and can be made of various materials, including glass or acrylic. Basketball hoops are used in various settings, from professional arenas to local parks. They are essential for the game of basketball, allowing players to score points by shooting a basketball through the hoop. Different types of hoops exist, including adjustable models for youth players.