Higo Zogan is inlaid metal work produced in Kumamoto Prefecture. The characteristic features of Higo Zogan are its simple dignified beauty and refinement. The beauty of the gold and silver design inlay contrasts with the somber deep black base. Higo Zogan involves several techniques such as the more commonly used nunome (woven mesh) inlay or the less common horikomi (engraving) inlay. In nunome inlay, many intersecting fine lines resembling a woven fabric are engraved into the iron base surface, then inlaid with gold or silver metal shapes and designs. Traditionally, Higo Zogan does not use any paint on the base metal; instead, a deep black color is achieved by allowing the natural process of rusting to bring out the beauty of the iron base metal.