[Product Description] ・This is a simple, handmade book cover made from a single piece of leather. ・The folded-over part, which is touched most often, is designed for a smooth feel compared to covers sewn from two pieces. ・Insert the cover of your book or paperback into the folded-over part. ・Suitable for paperback sizes, approximately 15cm tall, 11cm wide, and 1.5~2.5cm thick. ・The cover is made a bit loose to easily accommodate the generally thin covers of paperbacks. You can insert the cover along with the book. ・The cover has a large gusset, allowing it to be used with thicker books (up to about 1.5~2.5cm thick). (Conversely, it is not recommended for books with a thickness of about 1.5cm, as the cover will be too loose) ・The photos (1st~4th) show a book of 15cm tall, 11cm wide, and 2.5cm thick inserted, which is the limit. The photos (5th~8th) show a book of 15cm tall, 11cm wide, and 2cm thick inserted. [Details] ・Material: Cowhide leather ・Size: Approximately 16cm tall x 11cm wide (25cm when unfolded), gusset width approximately 2~3cm ・Color: Black ・Edge finish: Black ・Stitching thread: White (horizontal lines at top and bottom) ・Leather thickness: 1.5mm, Weight: 56.5g [Handmade] ・All processes, including cutting, sewing, and finishing, are done by hand. There may be some inconsistencies in the precision of the cut edges and seams, and the way the leather is joined, but we hope you will appreciate this as part of the handmade quality. [Notes on Purchase] ・Because genuine leather is a natural material, there may be individual differences in thickness, wrinkles, scratches, and firmness depending on the part. Please understand this. ・In principle, we do not accept returns, so please carefully review the photos and descriptions before purchasing.