I purchased this from Acru's official website. After purchasing, I put in a Hobonichi Techo Original once, but I didn't use it and stored it on a collection shelf. There was a white scratch-like mark from the time of purchase. (See photo 4) Size: Bunkoban size Color: Ro-iro (Black) From the website--- "Ro-iro" refers to a deep, beautiful black color like black lacquer. This can be used as a book cover for Bunkoban books or for the Hobonichi Techo Original size. The main body uses full vegetable-tanned cowhide. It features unevenness called "shibo" (grain), giving it a natural texture and softness.