Quoted from the official website: Easy to wash and dishwasher safe! Kai All Stainless Steel Petty Knife 145mm A petty knife from the Kai brand, highly popular worldwide as well as in Japan, known for its high-quality knives. It can be used universally for various ingredients such as meat, fish, and vegetables. This all-stainless steel knife has a good balance between the handle and blade, with a seamless, one-piece construction. It is durable and can be used in dishwashers, dish dryers, and dishwashing machines. The blade uses high-carbon stainless steel, which provides a sharp cutting edge and excellent durability. It achieves a sharp cutting performance. In addition, it has a streamlined handle with a comfortable grip and good finger placement.