The golden ratio design of dragon's head broadsword -- the eye of void is 117 cm in length, 39 cm in handle length, 73 cm in length, 4 cm in width, and 0.5 cm in thickness. It is forged with manganese steel to open double blood tanks. The hardness is as high as 60 degrees. Cutting iron does not hurt the blade. The sheath is made of solid wood wrapped with PU skin, which is necessary for outdoor use