Titanium is a lightweight, high-rigidity material used in eyeglass frames, golf club heads, submarines, and more. However, due to the difficulty of processing it and the high cost of raw materials, it has only been used in very expensive products. Furthermore, titanium's hardness has been said to make it unsuitable for use in knives. Our company has succeeded in developing the world's first knife that maintains its sharpness for a long time, using a unique manufacturing method. Antibacterial, sterilizing, lightweight, rust-resistant, and dishwasher safe.