Crafted from X50CrMoV15 German Steel, these full tang knives are highly durable, resistant to stains, and retain their sharpness. The blades are heat treated through an ultra6 stage process to ensure strength and functionality. They are hand sharpened to a 16-degree angle on each side. With a well-balanced 4.75" handle and 5" blade, they have an HRC rating of 58 +/- 2 on the Rockwell Hardness Scale. This set includes 4 steak knives. Cangshan's steak knives have a straight-edge with a precisely tapered blade from base to tip. They effortlessly slice through various meats and make for an impressive presentation. They are NSF International Certified and come with a lifetime warranty against manufacturer defects.