This is a high-quality leather, considered one of the finest among various types of leather, and is also known as the "diamond of leather." It is expensive and very popular. The sizes are approximately 1.0 decimeters on the left and approximately 1.6 decimeters on the right. Please note that these measurements are approximate, as they are taken by an amateur. The thickness is approximately 1.5 millimeters. I think this is a great deal. Thank you. #leather #leather #cordovan #leathercraft