From Miyabi, this sharpening steel features:  This 9-inch honing steel is designed for frequent honing and maintenance of your knife blades. The ultra-durable tungsten carbide construction works quickly to realign your edge and remove any niche or burr. Handcrafted in Seki, Japan, top-of-the-line MIYABI Birchwood is a work of culinary art. Both blade and handle are crafted from the most precious materials, which shape their striking appearance.  Made from tungsten carbide for superior hardness and durability Traditional Japanese Karelian (Masur) Birch handle Hand wash only Imported.