Harley-Davidson Light Lockback Light Lockback Specs: Closed Length: 3-1/2" Blade Length: 2-3/4" Blade Thickness: 1/8" Blade Material: Laser etched, 440 stainless steel with a bead blasted finish. Built-on thumbstud. Handle Material: Lightweight aluminum with a silver hard coat finish, black rubber inserts, and a nickel silver H-D shield.