Thank you for viewing. This is a book cover for a paperback book size. ☆ Fits paperback books with dimensions of 148mm x 105mm. ☆ Fits A6 size notebooks and planners up to 148mm x 115mm. ☆ Does not fit tall size books (156mm x 105mm) as the vertical inner dimension is insufficient. The unfolded size is 165mm in height and 248mm in width. The ring notebook in the photo is 148mm x 115mm x 10mm. The paperback book in the photo is 12mm thick. Books up to approximately 20mm thick will fit. Why not consider a luxurious leather cover for your A6 size planner, notebook, or paperback book? Made with black embossed cowhide leather (crocodile pattern) Black thread The crocodile-embossed leather hides scratches, allowing for long-term use. Wrapping your important planner or notebook in a luxurious leather cover will bring you joy. From cutting to processing, assembly, and sewing, everything is done by hand. Due to being handmade, there may be slight dimensional errors, but this does not affect usability. Please note that as natural materials are used, there may be minor scratches or wrinkles. ☆ Orders on Mercari are closed. ※ If you would like to commission a piece, please see the page currently listed on another handmade service. If you have any questions, please feel free to comment. #ojamalegaful