Takayuki Ginsan Wa These Sakai Ginsan Wa Gyutos have ebony wood handles and water buffalo horn ferrule. This is an excellent line that Sakai Takayuki has come out with has a very nice, octagonal ebony handle and water buffalo horn ferrule. The blade is made from a very hard, yet stain-resistant Hitachi Yasuki Silver-3 (ginsan) steel core and is clad with a softer, more durable stainless steel on the outside. Also, the edge is ground with a 50/50 bevel so it works well with lefties or righties.