This leather book cover is made using high-quality vegetable-tanned leather from Italy and is designed for paperback books (148-152mm x 105mm). It accommodates paperback books up to 20mm thick. Since you'll be holding the book cover for extended periods while reading, this is a highly recommended item that allows you to fully enjoy the aging process of the leather. 《Leather Type》 Nebraska (Vegetable-tanned leather from Lo Stivale, Italy) This shrink leather is rich in oil and characterized by its soft, supple texture. The embossed grain surface has a rich expression, and you can fully enjoy the aging process as it develops a beautiful luster. 《Color》 Black 《Size》 166mm high and 251mm wide when open. The inner frame is 154mm high, accommodating even the taller paperback sizes (152mm high) from major publishers. (Confirmed fit) *It does not fit the special Hayakawa Bunko (156mm high). However, if you wish, we can make a book cover compatible with Hayakawa Bunko for 6,000 yen, using the cowhide currently in stock. Please feel free to inquire. Please note that this is a handmade item. New cowhide is used, and all processes are done by hand. Therefore, minor scratches and color fading, which are characteristic of natural leather, are not considered damage. We will do our best to show these in the images, so we appreciate your understanding and acceptance before purchasing. Thank you very much.