Silver Vein Armor Piercing Damascus Tanto Butterfly knife by Bear and Sons Cutlery. It features a 5” Damascus stainless steel, hollow ground blade and Epoxy powder-coated handles. Each Bear & Son butterfly knife is handcrafted in the USA in Jacksonville, Alabama. 5" high definition Damascus blade Razor sharp hollow ground edge Armor piercing tanto tip Epoxy powder coated zinc handles Made in USA Blade Material : 440 Stainless Steel (Black TI Coat) Handle Material : Zinc (Black Epoxy Powder Coat) Blade Length : 3-3/8" Overall Length : 8-7/8" Closed Length : 5" Weight : 5.7 oz. Extras : Hollow Ground/Armour Piercing Blade