A set of soft card cases in A3, A4, and A6 sizes. The following 4 types, 15 sheets in total: The double-fold type can hold A3 inside A4 when unfolded, and A5 inside A6. - A3 size: 5 sheets - A4 size: 6 sheets - A4 size, double-fold type: 2 sheets - A6 size, double-fold type: 2 sheets I'm cleaning up my parents' house. The purchase date is unknown. For those who don't mind, those who know about them, and those who can use them. I may not know the details if you ask. Please understand. Please refrain from price negotiations as I am busy with the cleanup.