This is a custom-made Bible-size system notebook cover created by a creator. Made with beautiful leather, it develops character with use, and it's a product that allows you to enjoy the aging process. The back has a circular mark from the button that has rotated. I'm using another one in a different color, and it also has similar marks after use. I don't mind it, but please understand this. The frog part is also a pocket, making the cover easy to store things in. Anyway, the frog is so cute♪