Width: 13.5 Height: 10 Thickness: 2 Retail Price: 48,400 yen The cowhide is indigo-dyed to express a deep blue, and the studs are from Standard Rivet Company, a manufacturer with over 100 years of history. This item is handmade one by one by Japanese craftsmen. The color of the leather will change to a unique indigo blue the more you use it.