Tanto blades were made for thrusting. The Blue Shield, with the ABKT Assist Opening System, ball bearing system and made of D2 Steel, makes this knife durable and functional enough to continue thrusting. Fast, one-handed opening and designed for every situation. Closed Length: 4.5 Blade Length: 3.5 D2 Steel blades. Ball bearing pivot system. Black titanium coated tanto blade. Blue titanium coated liners.Black G10 handle. Black pocket clip.