This is a referee set, made of good material. Made of high class PVC material, these cards are very wear-resistant, and practical to use. Bright yellow and red colors are easy for instructors, players, and to see. School sports training, basketball, soccer, football and other sports, for referees, coaches, or anyone who needs cards. Features Note: there might be some color variation -Color:Assorted Color -Material:PVC -Size: 11.00X8.00X0.20cm/4.32X3.14X0.08in -Made of high class PVC material, these cards are very wear-resistant, and practical to use -Bright yellow and red colors are easy for instructors, players, and to see -Come with small size design, they can be neat and organized and you can have one set -Fit For: School sports training, basketball, soccer, football and other sports, for referees, coaches, or anyone who needs cards -Referee card set is mainly used for recording football matches, but also for badminton, rugby and other ball games Package list: 30 x red cards 5 x yellow cards