High performance samurai sword cold front spring steel forging, 90 degree bending straight back without deformation, hardness up to 60 ° Cutting iron without cutting edge, easily through mineral water bottle, cutting bamboo and wood, etc.: performance watch video test Longquan ancient technology, 24 manual grinding, knife body baking black lightning technology, manganese steel cutter head, pure copper knife clip, total length 103 cm, body length 71 cm, handle length 26 cm, width 3.2 cm, thickness 0.7 cm, sheath: solid wood oil black paint sheath