This Black Dragon WAKIZASHI is made of high carbon steel, the whole blade is heat treated and oil quenched, the black color on the blade is special treated, the black color can prevent the blade from rusting. Normally, the black color will not fade unless you re-polish the blade. The blade has long Hi (blood groove) on each side, This not only allows for a lighter blade and audible feedback when swung. but also can balance the blade to achieve optimal performance. the tsuba is a round blac..