This yanagiba is made from hand polished O-1 tool steel and has tested hardness of 62 HRC. The blade is a single bevel design with a hollow ground back(ura). The handle is stabilized ziricote, maple burl and nickel-silver. It comes with a poplar saya and it's ready to make some sushi!
O-1 steel is a high carbon steel that will patina over time.