CUSTOM DAMASCUS STEEL DOUBLE EDGE THROWING BOOT DAGGER KNIFE.This superb design knife is hand forged. Blade of this knife has a nice file work and ismade 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. Overall Length: 8.5" Inches. Damascus Design: Twist Pattern Layers:512 Sheath:Leather HandForged Hardness:55-58 HRC.