Kyowa letter set. This is a set of postcard sheets and envelopes. The pattern is Aya-ori of Tatewaku. Postcard sheets: 45 sheets, 1 design Envelopes: 10 sheets, 1 design The envelopes are size Yo-kei 2 (standard postal size). The size of the postcard sheets is postcard size. *The postcard sheets are not postcards and cannot be mailed individually. Unused, but stored at home. Please understand that this is not a perfect new item. You can buy it immediately.