To utilize the cards, referees simply hold them up high to indicate a penalty, either a yellow card for a warning or a red card for serious fouls. This clear signaling method helps players quickly grasp the situation and maintain discipline throughout the match. The easy-to-use design makes it suitable for both beginners and experienced referees. Features -Color:Multi -Material:Pu,pvc -Size:17.50X12.00X0.20cm/6.88X4.72X0.08in -Essential referee gear: this set features essential thick red and yellow cards along with a functional record book, providing referees with everything they need for thorough match officiating - quality: constructed with materials, the red and yellow cards are robust and reliable, ensuring they won’t easily break or wear out during demanding game situations -Efficient record system: the accompanying record book allows referees to easily note card incidents, enabling them to maintain focus on the game without being by recordkeeping challenges -Versatile for all levels: this referee kit caters to different match levels, making it good for amateur leagues, school tournaments, and professional competitions, adapting to all refereeing environments -Improved officiating effectiveness: by utilizing these cards and the record book, referees can promptly address player conduct, thereby enhancing game management and overall fairness Package list: 1 set football referee cards (1pcs book ,1pcs pen)