Made of 67-Layers Japanese Damascus Steel. with Razor Sharp CUTTING CORE VG-10 (VG-10 Steel Outperform AUS-10 Steel in Durability). The Super Sharp Chef's Knife with Rockwell Hardness of 60 ± 2HRC and Cutting Force Reach 5-6N;The Japanese Steel Knife is Extremely Durable and Ultimate Razor Sharp; The Damascus Kitchen Knife is Ideal for Both Professional Chef and Home Cookers to Have Excellent Performance at Cutting Fish, Meat, Vegetables and Fruit.