This is an older discontinued 510 model. This is the same size as the Buck 500 model. It features an engraved aluminum handle (is dinged/used) with an area to engrave your own name/initials in the center. The blade is mirror polished but has scratches from sharpening, which we have tried to show in the pictures. The edge is new and very sharp. This is a lightweight knife and has excellent snap and tight lockup. Knife only, no sheath. Used, but still a very nice vintage knife!