This is a handmade book cover. The size is for a shiroku-ban (approximately 135 x 195 mm), and when unfolded, it measures approximately 20 cm in height (the part that actually holds the book) and 37 cm in width. ☆ It can be used for hardback shiroku-ban books. Please pay attention to the size of your book. As it is handmade, there may be some slight variations, but please understand. Shipping will be via regular mail (teikeigai-yubin). Please note that delivery may take longer as the post office is closed on Saturdays, Sundays, and holidays, even if the item has been shipped.