A corner flag is a crucial component in sports like soccer and rugby, marking the four corners of the playing field. These flags not only define the boundaries but also assist referees and players in making accurate decisions during the game.​

Specifications:

• Height: According to the International Football Association Board (IFAB), corner flags must be at least 1.5 meters (5 feet) tall. ​

• Material: Typically constructed from flexible materials such as PVC or plastic to minimize injury risk upon impact.​

• Base: Options include spiked bases for insertion into soft ground or weighted bases for artificial surfaces, ensuring stability during play.​

• Flag: Usually made of weather-resistant nylon or polyester, available in various colors, often bright for high visibility.