This is a limited edition USN G4 TR-4 Skull knife. It has a Bruce Shaw designed sterling silver skull that is set into the black anodized aluminum handle and is laser engraved with the G4 logo and serial number. The push button insert is USN green G-10. The 154-CM steel blade is two-tone finished black and satin. Includes a lanyard with skull bead. These knives are serial numbered, only 25 made!