Thank you for viewing. This is a simple book cover. It is made from the new color Avio (blue) of the popular Italian leather MARGOT. I think it's a color close to light blue or turquoise blue among blues. MARGOT is leather made from European cowhide tanned with vegetable tannins and has a scratch finish. As you use it, the color will deepen and become more lustrous with age. We hope you will enjoy the aging process. ・Product Size (outer dimensions): 29.9cm x 16.2cm The inner height is 154mm. It supports tall paperback sizes (height 152mm) from major publishers. Also, it is a fold-over type to accommodate the thickness of the book. MARGOT is 1.3mm thick and has a moist and calm feel, so we hope you will enjoy the texture. ・Thickness of MARGOT used 1. 3mm ・Thread Vnimo MBT #5 Color number 41 ・Weight 63g The fifth photo shows a Kodansha Bunko with 380 pages, and the sixth photo shows a Bunshun Bunko with 580 pages. *As a reference, the last photo shows a comparison photo after aging with a blue paperback cover. I'm sorry, but there is no aging done with Avio yet. Due to the genuine leather and handmade nature, there may be some wrinkles and scratches. We hope you will enjoy them as individual characteristics. Please check the photos and understand. Shipping will be via Yu-Packet Post Mini, folded. We apologize, but please refrain from comments asking for price negotiations. Color...Blue Pattern/Design...Solid Material...Genuine leather Type...Book cover