The blade’s cutting edge is high carbon steel laminated to iron. The knives are finished with kurouchi, a technique of polishing only the cutting edge and leaving the rest black. The all-purpose and vegetable knives (pictured) are beveled on both sides. Please make sure to clean and wipe the moisture off the blade after each use to prevent rusts on the knife. The handle for all-purpose and vegetable knife is made of chestnut. We recommend using Camellia oil for maintenance. Blade length 6-1/2″. Total length is approximately 11-1/2″ Comes in a gift box as pictured.