The blade is 10.5cm (4.2 inches) long, is Very Sharp & is made from Quality High Carbon Steel hardened to HRC 63-65 & tempered to HRC 59 to balance ductility & brittleness. The blade extends with an internal tang secured to the top of the handle with a rivet. The blade is natural unpolished carbon black except for the grind. The handle is made from a curly birch, however please note that since amount of grain in the wood will vary greatly. The sheath is made from wet-formed vegetable tanned leather & it has a reindeer leather belt hanger attached to it. YOU NEED TO BE OVER 18 TO BUY THIS PRODUCT.