USMC Linerlock A/O Black U. 4.5" (11.43cm) closed. 3.38" (8.59cm) two-tone finish partially serrated stainless tanto blade. Black nylon handle. Extended tang. Thumb stud. Pocket clip. Boxed. Specifications for USMC Linerlock A/O Black USMA3007BK: Manufacturer: USMC Blade Length: 3.3 in Closed Length: 4.5 in Blade Material: Stainless Knife Application: Tactical Everyday Carry Rescue Folding Blade Serrated: Partially Serrated Overall Length: 7.8 in Handle Material: Nylon Fiber Handle Length: 4.5 in Handle Color: Black Blade Finish: Black Oxide Blade Shape: Modified Tanto Opening Method: Spring Assisted Sheath Material: No Sheath Package Type: Box Color: Black Blade Type: Partially Serrated Package Contents: USMC Linerlock A/O Black