Kershaw Black Vapor Knife with Titanium Carbo-Nitride Black Coating Kershaw's Black Vapor features a drilled industrial design and combines good looks Specifications: Steel: AUS6A stainless-steel with Titanium Carbo-Nitride black coating 3-inch blade. 4-inch closed. Decoratively drilled. Titanium-nitride coated stainless. Limited Lifetime warranty