Black Book Cover Thickness Adjustable with Bookmark Synthetic Leather (A5)

[Adjustable to suit the thickness] By adjusting the inner flap, you can adjust it to fit the thickness of the book. Can be used for books of various thicknesses. [PU leather] It has a look and texture similar to genuine leather, and has high elasticity and flexibility. It is soft and feels close to real leather. [Enjoy reading anywhere] You can hide the cover and enjoy reading even in places where people can easily see you, such as on the bus or train. You can protect your precious books and carry them around without getting them dirty. [Bookmark string] A bookmark string is included. [Size and Color] Available in sizes such as A5, B5, B6 standard binding, B6 standard binding, 46 standard binding, 46 standard binding, paperback, and new book, and you can choose between black and brown colors. The compatible book thickness is approximately 30mm (approximately 600 pages). If the width of the cover is larger than the width of the size chart, the thickness of the book that can be stored will be thinner. Example: The size of a book that can be used in A5 size is 210mm x 148mm. If the horizontal length of the book cover is 148mm, the book can be stored up to a thickness of about 30mm (about 600 pages). If the horizontal length of the cover is 2 mm larger than 148 mm, the cover will be 4 mm larger including the front and back, so the thickness of the book that can be stored will be 30 mm - 4 mm = 26 mm. book cover