We have recently been able to acquire these very popular knives direct from the manufacturer since Hattori had a very difficult time supplying them. The only difference is that the manufacturer's name is engraved on the blade in Japanese characters. Their name is Maruyoshi. The knife measures 270mm or 10.5 inches on the blade. These excellent knives offer traditional technology combined with modern material for high cutting performance. The core steel is made of VG10 with 63 layered Nickel Damascus stainless steel blade. VG10 is the newly developed High Carbon (0.95 to1.05%) Molybdenum (0.90 to 1.20%) and Vanadium (0.10 to 0.30%) stainless steel plus 1.30 to 1.50% Cobalt added to increase strength. The edges have a Rockwell hardness of 60 to 61 HRC. The beautiful Damascus blade is hand engraved. The handles are made with black Pakkawood and three stainless steel rivets.