ITEM CODE 10017 Interchangeable pocket knife. STEEL Stainless steel 440A HANDLE Walnut wood LOCKING Patented liner lock BLADE Interchangeable, 87 mm and 60A blade, 70 mm OPEN/CLOSED 204/116 mm WEIGHT 46 g First Traditional pocket knife in the world with interchangeable blade for a razor sharp cut. Easy to change blades, extremely sharp and very practical. Hand polished Walnut wood handle.