Blackjack Model 5 with Smooth Natural Micarta Handle. 5.5" A2 Tool Steel blade. Convex Grind. Aluminum double guard and pommel. 10 3/8" Overall length. Leather belt sheath. Knife and sheath made in U.S.A. A2 Tool Steel is a high carbon steel. While considered by many to be a superior hard use steel is is prone to discoloration, tarnish and rust. Use appropriate care.