The ultimate performance of a carbon steel cutting core meets the beauty and benefits of SAN MAI stainless steel cladding in the Shun Narukami series. If you swear by the performance of a carbon steel knife, these knives are for you. Narukami, which means “thunderbolt” in Japanese, has a striking look. It is designed for professionals and for those who appreciate the unique qualities of fine carbon steel cutlery. Like all carbon steels, Blue II requires additional care. Cleaning and drying immediately is key. Over time, the edge will darken, developing a patina which, when formed, will also help protect the edge. Available here: https://shun.kaiusa.com/narukami.html