Knife King Premium Custom Damascus Handmade Folding Knife. Linerlock. Comes with a Sheath. PLEASE NOTE ONLY BUY FROM SELLER KNIFE KING Linerlock Mechanism Retains sharp edge after rough and tough use Razor sharp and rock solid. Hardness 58-60 Hrc on rockwell scale Quality Material Used 15N25 & 1075 Over 200 layers of damascus steel