HWK = Hazard Woods Knife. This is a slightly larger version of Ray's original HWK blade. 5" blade of 3/16" O1 steel. Scary sharp convex edge. 10 1/8" overall length. Green canvas micarta handles. Nice kydex sheath. Blade fits securely in the sheath. Knife is near mint, just a few kydex marks. Never used, carried, or re-sharpened. This is an amazing design. A perfect model for a camp knife or any trip into the woods.