A football foul card is used to warn, scold, or punish a player, coach, or team official. These cards are more popularly known as Penalty Cards. Referees or umpires usually use them to show that a player has committed an offense. Foul cards are important because it makes the decision of the umpire or referee clear to the player. Also, the whole ground, along with the spectators and other officials, come to know. The cards make it language-neutral. So it's easy for all to understand, irrespective of their language. The cards are usually made of top-quality PVC. They are unbreakable. This makes it appropriate for handling on the ground. It also makes it long-lasting. You can opt for cards that come with scorecards. They have scoresheets inside. You can also opt for the ones that come with a wallet and pencil. You can keep all cards, sheets, and a pencil together in the wallet. So it's easy to carry. You can also choose football foul cards in attractive shapes. They will be cards in triangles, circles, or squares. Some of the foul cards are not restricted to football only. You can also use them in sports like track events, badminton, hockey, volleyball, table tennis, etc. Brands like IRIS, CORSO, PEPUP, WASAN, Proactive SPORTS, and many others sell football foul cards online.