The corner flag in football is a flag that is placed in each of the four corners of the field to mark the playing area’s edges. All four corner flags are essential not only because it marks the size of the field, but also because it gives visual guidance to the referee and the players. In addition, it also makes it easy for a player to know where he or she can carry out a corner kick.

Corner Flag
Characteristics of Corner Flags
Corner flags come with several interesting characteristics. One of these is that it should be 1.5 meters in height and not lower. Another is that all the poles that hold the flags should not be pointed.
Furthermore, poles of the corner flags come with different colors, diameters and sizes but always with matching flags. In terms of the materials used to make the poles, standard ones include elastic plastic to enhance resiliency. These poles of the corner flags are also attached by a ground sleeve on the field. These ground sleeves often come with articulated joints that limits flexibility on all sides. All of these characteristics are essential to prevent risk of injury.
Corner flags are robust and weather-resistant. This means that the flags should be made out of tear-resistance fabric so that it can be used not only indoors but also outdoors. Standard material used is polyester.
Last but not the least is the fact that there are corner flag accessories. These accessories are used to make sure that the flag is fastened into the ground and include ground sleeves, flag holder clip and border poles ground sleeves as well as flagpoles.
Interesting Facts of Corner Flags
In addition to having specified and standard characteristics, corner flags also come with several interesting facts. One of these is its history, which says that it was introduced when the corner kick was created in 1868 and this creation made the rulebook in 1872.
Another interesting fact is the flag’s shape. According to a football custom, clubs that have a history in winning the FA Cup are the only ones allowed to place corner flags with triangular shapes, the rest should be square ones. This has been a tradition, though technically the rulebook does not dictate it. In general, what is being represented by the flags are the colors of the teams that are playing.