●Main Material: Genuine Leather, Made in Japan ●Designed with thin leather to reduce weight. In addition, depending on the production lot, the dye of the leather may be lighter and darker, or as it is a natural material, there may be individual differences in the form of scuff marks and blood muscles ●※There are many color variations so please be careful when selecting the book size and color ●Cover Body Size (W x H x D): Approx. 9.8 x 7.5 x 0.04 inches (25 x 19 x 0 ●Compatible New Book Size: W 4.3 x H 7.0 x D 0.5 inches (10.9 x 17.7 x 1.3 cm)