Grading Check Cards There are 10 cards each for A and B, for a total of 20 cards. The size is 10.8cm tall x 8.8cm wide. The design is the same on both sides. The contents of each card are bingo cards purchased from a 100-yen store, and can be enjoyed at a second party after the grading check is used. These are handmade, so please refrain from claims or returns.