This leather is "Vono Aniline" from Tochigi Leather, so you can enjoy the changes in color and luster over time. Many people have already spoken about Tochigi Leather, so I won't say much, but it is one of the world's leading tanneries specializing in tannin tanning, and a source of pride for Japan. The surface of the leather is aniline-dyed, which leaves the natural texture of the leather, resulting in an outstandingly transparent finish. [Specifications] Source: Tochigi Leather ⇒ Hashimoto Sangyo Material Name: Vono Aniline Leather: Cowhide Steer Colors: The following 2 colors Natural (currently changing to a caramel color) / Red Size: A4 size (210mm x 297mm) *There may be slight variations due to hand cutting. Number of sheets: 2 Thickness: Approximately 1.0mm *Varies depending on the part *The thickness is easy to sew even for those unfamiliar with leather. Dyeing: Dye Aniline finish Luster: ☆☆☆★☆ Hardness: ☆☆☆★☆ Backside: Core-dyed, same color, split and no fuzz Tanning: Full vegetable tannin tanning *Pit tank tanning Packaging: Packed in OPP bags [Notes] ・We have photographed the entire A4 size and its four corners, but please understand that there may be scratches, wrinkles, and stains that are not fully captured. ・The upper right part of image 4 is natural color, but the other parts are currently changing to a caramel color, so please understand. ・As it is natural leather, please understand that there may be variations in the leather due to individual differences (differences in appearance depending on the part), scratches, color unevenness, wrinkles, and scratches. ・The red tag, Tomica, and scale are for photography purposes and are not for sale, so please understand. ・Please understand the quality of home storage and shipping in simple packaging before purchasing. (Please refrain from purchasing if you are looking for a perfect product) ・Please understand that the color of the image may differ from the actual color due to the photography. Thank you for viewing.