This is a letter set from Kyowa. It's a set of writing paper and envelopes. The writing paper is Iyo washi (Japanese paper). The design is the traditional Japanese pattern of Tachiwaki (rising steam). Writing paper: 15 sheets, 1 design Envelopes: 10 sheets, 1 design The envelopes are Western-style No. 2 (standard postal size). The writing paper size is B5. Although unused, this item has been stored at home. Please understand that it is not a perfect new item. You can purchase it immediately.