KOKORO (Mind, Heart & Spirit)- SkyJiro Forge Japanese Samurai Katana Sword SkyJiro Forges Folded Oroshigane Hand Forged from Pure Iron Carbonized Piece Kobuse Construction with Folded Iron Core & 9600 Layers SkyJiro Forges Superior Differential Clay Technique (Traditional Japanese Method) SkyJiro Forges Superior Hand-Mirror Polish, with Japanese Water Stone and Superior Finger Stone Finish