The jar was formed by coiling, the trace of which can be clearly observed on the surface of the body. The unique thick, angular mouth rim is one of the characteristics of the jars produced during this period. Feldspar granules protruding from the coarse clay body are visible on various parts, producing a distinct texture on the surface. Several large pale-green patches of natural glaze, made as a result of ashes spontaneously spattering on the surface, produce a superb aesthetic appearance. It can be said as one of the masterpieces of Shigaraki jars of the Muromachi period (1392-1573).