Genuine cowhide, dark peacock color close to black. This is a B5 size notebook cover made with approximately 2mm thick leather. The edges are hand-stitched with dark navy leather cord, making it stylish and simple. As it is natural leather, some of the original scratches are noticeable, so it is offered at a discounted price. There is no problem with using it. Please understand that this is a handmade item by an amateur. The notebook in the second photo is a standard CAMPUS B5 notebook with 30 pages.