Kyowa letter set. This is a set of postcard paper and envelopes. The pattern is a twill stripe. Postcard paper: 45 sheets, 1 design Envelopes: 10 sheets, 1 design The envelopes are size No. 2 (standard postal size). The postcard paper size is postcard size. *The postcard paper is not a postcard, so it cannot be mailed individually. Unused, but stored at home. Please understand that it is not a perfect new item. You can buy it immediately.