Coloring refill sheets are trending in Korea! Four sheets are standard savings refill sheets, where you check ☑︎ each time you save. The two sheets with pictures are the type where you color one in when you save 1000 yen. This set includes six sheets: 10,000 yen (1 sheet), 15,000 yen (1 sheet), 20,000 yen (1 sheet), and 30,000 yen (3 sheets). These are handmade, so please refrain from purchasing if you are concerned about ink bleeding or cutting errors. They are made on plain paper, so the back side will be slightly see-through.