Blade of this knife has a nice file work and is made of 512 layers of 4340 stainless steel and 1075 high carbon steel and hardness 55-58 HRC. This robust knife is lab tested under intense conditions, the balance and shape of this knife ensures perfect grip.Keep the knife dry after each cleaning. Take care when removing product from packaging. Keep fingers clear of blades. WE USE STOCK PICTURES SO BLADE PATTERN COULD BE CHANGE BUT THE MATERIAL WILL BE SAME.