Columbia River Knife & Tool Particle Separation Device II, Folding Knife, EDP Finish, Brown G-10 Handle, 3.03 Blade Length, AUS 10 Steel, Liner Lock 7910 Jim Hammond's original P.S.D. earned its name (Particle. Separation. Device.) for its ability to cut through just about anything" anywhere. The P.S.D. II brings that same capability to a smaller" more portable folding knife" shaving over an inch off the total length. You'll still find a corrosion-resistant" full-recurve blade and Assisted Opening with IKBS bearings for fast and easy one-handed operation" but now in an improved form factor for everyday carry.