Genuine leather trucker wallet. - Color: Black (hill-dyed) Jumper hook: Brass Fastener: YKK Size: 9.3cm height, 14cm width, 1.8cm thickness This is a handmade product, entirely hand-stitched instead of machine-stitched. The hand stitching results in a very sturdy construction. The leather used is genuine nubuck (full-vegetable tanned) undyed leather. This is likely the leather that comes to mind when you hear "nubuck leather." Initially, it's a firm and crisp leather, but it becomes more supple and easier to use with use. This leather has been dyed. Over many years of use, it will undergo aging (color change), resulting in a so-called "flavor." The finish is done with neat's-foot oil and a leather coat.