Muela 4.75-Inch Spear Point Folding Knife, Navaja Gold Blade Material: 440 Chrome-Vanadium-Molybdenum Alloy Martensitic Steel, Hardness of 54-58 degrees on the Rockwell Scale Manufacturas Muela knives from Joy Enterprises are handcrafted in Argamailla de Calatrava, Ciudad Real, Spain. Liner Lock Mechanism Historic Replica Folding Knife based on 18th Century Design Lifetime Warranty direct from Muela's Authorized North American Agent, Joy Enterprises